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How to Write and Format a Chicago Style Paper [With Examples]

• 3-minute read
• 18th August 2023

Are you working on a Chicago style project but struggling with the question, “just what is it?!”

Fear not, this post will walk you through Chicago style basics.

What Is Chicago Style?

The Chicago Manual of Style (CMoS) is a comprehensive style guide primarily used by professional writers, publishers, and researchers. It covers various forms of writing, including books, journals, magazines, and other publications. It’s often the go-to style for publishers and editors. CMoS is also known for its emphasis on scholarly writing and is suitable for a wide range of disciplines, including history, literature, the arts, and social sciences.

However, there’s an important distinction between Chicago style and Turabian style , which is essentially a simplified version of CMoS used in scholarly writing. Turabian omits some of the complexities and focuses on the needs of academic writers, especially those in the humanities and social sciences.

With either style, it’s essential to consult the relevant edition of the style guide specified by your institution or publication: either The Chicago Manual of Style or A Manual for Writers by Kate L. Turabian (currently in its ninth edition).

How Are Chicago Style Citations Formatted?

CMoS emphasizes two primary documentation systems : the notes and bibliography system (often used in the humanities) and the author–date system (preferred in the sciences and social sciences). When formatting a CMoS/Turabian paper, you’ll need to adhere to the guidelines associated with your chosen documentation system.

Notes and Bibliography System:

●  In this system, you’ll use footnotes or endnotes to cite sources within the text.

●  A corresponding bibliography is included at the end of the paper, listing all sources in alphabetical order.

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●  Citations typically include author names, titles, publication details, and page numbers.

Author–Date System:

●  In the author–date system, you’ll incorporate in-text citations within parentheses.

●  A reference list is included at the end of the document, providing full details for each cited source.

●  Citations include author’s last names, publication year, and page numbers (if applicable).

What Does Turabian Style Formatting Look Like?

A well-structured Turabian Style paper should adhere to the following formatting guidelines :

•   Title page : Include the title of your paper, your name, the course name/number, instructor’s name, and the date on a separate page, starting a third of the page down. Alternatively, write the title on the first page.
•   Margins : Apply one-inch margins on all sides.
• Indentation and spacing : Indent paragraphs and double-space the main text.
• Font : Use a legible 12-point font (e.g., Times New Roman).
• Page numbers : Number all pages consecutively in the top right corner, starting with the first page. Alternatively, page numbers may be placed at the bottom center of the page.
• Headings and subheadings : Use headline-style capitalization for headings and subheadings, with different levels distinguished.
• Footnotes or in-text citations: Implement your chosen citation system consistently throughout the paper.
• Bibliography or reference list : Include a comprehensive list of all sources used, following Chicago style citation guidelines for your chosen system.

How Should I Choose Which Chicago Style Documentation to Use?

It’s crucial to find out which specific CMoS system is preferred by your institution, publisher, or field of study. Always consult your assignment guidelines or style manual to determine whether you should use the notes and bibliography system or the author–date system. This choice will significantly impact how you format your citations and references.

Remember that mastering CMoS takes practice. By following these guidelines, you’ll be well on your way to crafting polished, professionally formatted papers that meet the expectations of your academic or professional audience.

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Purdue Online Writing Lab Purdue OWL® College of Liberal Arts

Chicago Manual of Style 17th Edition

Welcome to the Purdue OWL

This page is brought to you by the OWL at Purdue University. When printing this page, you must include the entire legal notice.

Copyright ©1995-2018 by The Writing Lab & The OWL at Purdue and Purdue University. All rights reserved. This material may not be published, reproduced, broadcast, rewritten, or redistributed without permission. Use of this site constitutes acceptance of our terms and conditions of fair use.

Please note that although these resources reflect the most recent updates in the The Chicago Manual of Style  (17 th  edition) concerning documentation practices, you can review a full list of updates concerning usage, technology, professional practice, etc. at  The Chicago Manual of Style Online .

Introduction

The Chicago Manual of Style  (CMOS) covers a variety of topics from manuscript preparation and publication to grammar, usage, and documentation, and as such, it has been lovingly dubbed the “editor's bible.”

The material on this page focuses primarily on one of the two CMOS documentation styles: the Notes-Bibliography System (NB) , which is used by those working in literature, history, and the arts. The other documentation style, the Author-Date System, is nearly identical in content but slightly different in form and is preferred by those working in the social sciences.

Though the two systems both convey all of the important information about each source, they differ not only in terms of the way they direct readers to these sources, but also in terms of their formatting (e.g., the position of dates in citation entries). For examples of how these citation styles work in research papers, consult our sample papers: 

Author-Date Sample Paper

NB Sample Paper

In addition to consulting  The Chicago Manual of Style  (17th edition) for more information, students may also find it useful to consult Kate L. Turabian's  Manual for Writers of Research Papers, Theses, and Dissertations  (8th edition). This manual, which presents what is commonly known as the "Turabian" citation style, follows the two CMOS patterns of documentation but offers slight modifications suited to student texts.

Notes and Bibliography (NB) in Chicago style

The Chicago Notes and Bibliography (NB) system is often used in the humanities to provide writers with a system for referencing their sources through the use of footnotes, endnotes, and through the use of a bibliography. This offers writers a flexible option for citation and provides   an outlet for commenting on those sources, if needed. Proper use of the Notes and Bibliography system builds a writer’s credibility by demonstrating their accountability to source material. In addition, it can protect writers from accusations of plagiarism, which is the intentional or accidental uncredited use of source material created by others.

Introduction to Notes

In the Notes and Bibliography system, you should include a note (endnote or footnote) each time you use a source, whether through a direct quote, paraphrase, or summary. Footnotes are added at the end of the page on which the source is referenced, while endnotes are compiled at the end of each chapter or at the end of the entire document.

In either case, a superscript number corresponding to a note, along with the bibliographic information for that source, should be placed in the text following the end of the sentence or clause in which the source is referenced.

If a work includes a bibliography, which is typically preferred, then it is not necessary to provide full publication details in notes. However, if a bibliography is not included with a work, the first note for each source should include  all  relevant information about the source: author’s full name, source title, and facts of publication. If you cite the same source again, or if a bibliography is included in the work, the note only needs to include the surname of the author, a shortened form of the title (if more than four words), and the page number(s). However, in a work that does not include a bibliography, it is recommended that the full citation be repeated when it is first used in a new chapter.

In contrast to earlier editions of CMOS, if you cite the same source two or more times consecutively, CMOS recommends using shortened citations. In a work with a bibliography, the first reference should use a shortened citation which includes the author’s name, the source title, and the page number(s), and consecutive references to the same work may omit the source title and simply include the author and page number. Although discouraged by CMOS, if you cite the same source and page number(s) from a single source two or more times consecutively, it is also possible to utilize the word “Ibid.,” ( from the Latin ibidem, which means “in the same place,”) as the corresponding note. If you use the same source but a draw from different new page, the corresponding note should use “Ibid.” followed by a comma and the new page number(s).

In the NB system, the footnote or endnote itself begins with the appropriate full-sized number, followed by a period and then a space.

Introduction to Bibliographies

In the NB system, the bibliography provides an alphabetical list of all sources used in a given work. This page, most often titled Bibliography, is usually placed at the end of the work preceding the index. It should include all sources cited within the work and may sometimes include other relevant sources that were not cited but provide further reading.

Although bibliographic entries for various sources may be formatted differently, all included sources (books, articles, websites, etc.) are arranged alphabetically by author’s last name. If no author or editor is listed, the title or, as a last resort, a descriptive phrase may be used.

Though useful, a bibliography is not required in works that provide full bibliographic information in the notes.

Common Elements

All entries in the bibliography will include the author (or editor, compiler, translator), title, and publication information.

Author Names

The author’s name is inverted in the bibliography, placing the last name first and separating the last name and first name with a comma; for example, John Smith becomes Smith, John.

Titles of books and journals are italicized. Titles of articles, chapters, poems, etc. are placed in quotation marks .

Publication Information

The year of publication is listed after the publisher or journal name .

Punctuation

In a bibliography, all major elements are separated by periods.

For more information and specific examples, see the sections on  Books  and  Periodicals .

Please note that this OWL resource provides basic information regarding the formatting of entries used in the bibliography. For more information about Selected Bibliographies, Annotated Bibliographies, and Bibliographic Essays, please consult Chapter 14.61 of  The Chicago Manual of Style (17th edition).

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The Complete Guide to Chicago Style

By Allison Bressmer

The Chicago Manual of Style (CMOS) is a widely used style guide that covers topics like preparing manuscripts for publication, grammar rules, and word usage. It also offers two style options for source citation .

While Chicago Style is more often used for published works than high school or undergraduate class papers, Kate Turabian developed a simplified version of the CMOS’s citation styles, with modifications that address the needs of student writers.

What Does the Chicago Manual of Style Do?

Chicago manual of style general formatting guidelines, how to format an in-text chicago-style citation, guidelines for formatting reference and bibliography pages, why are citations and references necessary.

The purpose of CMOS, or any style guide, is to create a system of standardization across a publication, company, publishing house, or project, etc.

Language and conventions of language, grammar, and word usage are fluid and influenced by social location or other factors, so style manuals provide rules or guidelines to establish consistency.

Additionally, style guides provide easy navigation for readers by creating a clear framework for how sources are cited, documented, and located, should the reader want to investigate that source further.

The CMOS offers these general guidelines for formatting papers:

• Margins should be no less than 1 inch and no more than 1.5 inches around the paper; margins should be consistent throughout.
• The body of the main text should be double spaced .
• Block quotations, notes, bibliography entries, table titles, and figure captions are single spaced .
• Text should be left-justified .
• New paragraphs should be indented by one half inch.
• Font size and style should be legible . While CMOS does not offer a specific font preference, the Turabian guide recommends Times New Roman (12 point) or Calibri (11 point) for student papers.
• Each page of the document should have a header in the top-right corner that includes the page number .

What About a Title Page?

CMOS does not require a title page. However, if the publication you’re writing for requires one, you’ll need to follow their format.

The Turabian guide states that class papers may require either a title on the first page of text or a title page. If you need to include a title page, the recommendations are as follows:

• Center the title one-third of the way down the page.
• The subtitle , if you have one, goes under the title . Put a colon after the title if you have a subtitle.
• Your name , class information , and the date should be included a few lines (3-4 return hits) later, each a separate line.
• All information should be double-spaced .

What About Headings?

In CMOS, consistency is key. There is no set rule for headings and subheadings, other than that they should be consistent throughout the work. Think of them as visual cues.

A reader should be able to recognize that “this font at that size” is a chapter beginning. Or “that font in this size” signals a main subsection of a chapter, and so on.

Other CMOS Style Elements to Know

Because there is variety even within the CMOS, it’s important to remember to check with your instructor or publisher about the specific style methods they follow and to ensure you understand any preferences not specifically stated in the CMOS guidelines.

Here are some common sticking points you may have questions about.

Introduce acronyms the first time you refer to the entity or concept, etc., that they stand for. The first line of this article demonstrates that practice.

The Chicago Manual of Style (CMOS) is a widely used style guide . . . .

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Use words rather than numerals for numbers under 100. For example, write out twenty-eight instead of 28. There are exceptions to this rule: Use numerals when referring to a specific measurement; for example, 1 inch, and when using decimals. Also, for more technical writing, CMOS advocates spelling out numbers one through nine, but using numerals for any figure with two or more digits.

“Block” a prose quotation of five or more lines. This means the entire quote should be indented, or set off, from the surrounding text. Do not use quotation marks around blocked quotations. Use the same font style and size for the blocked quote as you used for the surrounding text.

Use “headline-style” capitalization for titles mentioned in the text, notes, or bibliography. Headline style means the first words of titles and subtitles, as well as any principal words that follow, are capitalized. Principal words include the first and last words of the title, as well as any words that are not conjunctions, articles, or prepositions. Use italics or quotation marks for titles depending on the works they represent.

Figures and Tables

If you include a figure or table in your work, follow these elements of CMOS:

• Position the figure under the information that discusses that figure.
• Put the caption directly under the image or figure and flush with the left edge of the figure. Use single spacing for the caption.
• Leave at least one blank line between the caption and the continuing text in your document.
• Label the image and ensure that labels are consecutive. For example, Figure 1; Figure 2; Figure 2.1.

CMOS offers two options for in-text citations and their respective reference or bibliography pages: author-date and notes and bibliography .

The Author-Date System

The author-date style is used more commonly in physical and social sciences. With this method, sources are cited in the text, usually with a parenthetical citation that includes the author’s last name and the year the cited work was published.

To find full bibliographic information on the source, the reader can consult the reference list and find the corresponding entry.

This method offers the writer some flexibility in how to integrate citations into their texts.

Examples of Author-Date Style

Let's pretend I ran an experiment on the most popular color of M&Ms among five-year-olds. I conducted the study in 2020 (because what else was there to do during a pandemic?), and you want to include my findings in your paper.

With the author-date format, you could use either of these possibilities:

The study revealed that five-year-olds prefer blue and green M&Ms to brown and yellow ones (Bressmer 2020).

Bressmer (2020) determined that five-year-olds prefer blue and green M&Ms to brown and yellow ones.

If I had worked with one or two others—say, Johnson and Smith—on my study, you would simply add their names to the citation, like this:

• The study revealed that five-year-olds prefer blue and green M&Ms to brown and yellow ones (Bressmer, Johnson, and Smith 2020).

If any additional researchers were involved in the study (making the total four or more names), you would use (Bressmer et al. 2020).

If you need to cite more than one reference in a single in-text citation, use semicolons to separate those references.

• One study revealed that five-year-olds prefer blue and green M&Ms to brown and yellow ones, but a subsequent study indicates that blue is preferred even over green (Bressmer 2020; Phillips 2021).

If I had conducted both of those studies (not Phillips), only a comma would be required between the dates: (Bressmer 2020, 2021).

Author-Date Reference List

If you use the author-date style, you must include a list of references as the last page of your work. Each of your in-text citations must have a corresponding entry on the reference list that includes the full bibliographic information for the source.

The reference list should only include sources you’ve cited in the document.

The Notes and Bibliography System

This system is often preferred by those working in the humanities. It has flexibility and provides an opportunity for commenting on sources, if the writer feels a comment is necessary.

In the notes and bibliography style, writers acknowledge they have used a source by putting a superscript number at the end of the sentence in which that source is referenced. If the reference is a direct quote, then the superscript should immediately follow the quotation. The note number should also follow punctuation, rather than precede it.

Footnotes and Endnotes

Using either footnotes or endnotes , the writer includes a numbered note that corresponds to the in-text superscript number either at the bottom of the page on which the reference is used, in which case the note is called a footnote , or in a compiled list of notes at the end of a chapter, or the entire document, called endnotes .

Footnotes and endnotes include bibliographic information for the cited source. These notes then correspond to entries on the last page of the paper, the bibliography.

Usually, the first time a source is listed as a footnote or endnote , it is appropriate to use a full note, which includes full publication details of the source.

If a source is included in subsequent footnotes or endnotes , it’s common practice to use short notes , which include the author’s last name, title of the work, and page number, if relevant. However, always check with your instructor or publisher and follow their recommendations.

Example of Notes and Bibliography Style

Imagine the sentence below appears in the text of a document in which the writer referenced my M&M study. Note the superscript after the referenced material and the corresponding footnote (full-note form) at the “bottom” of my page. A thin line separates footnotes from the main text, and the footnotes appear in a font of the same or smaller size than the main text.

The study revealed that five-year-olds prefer blue and green M&Ms to brown and yellow ones.1

• Allison Bressmer, “The M&M Attraction Study,” The Journal of Imagined Studies 100, no. 1, (August 2020): 5.

A short-note version would simply include

• Bressmer, “The M&M Attraction Study,” 5.

The Notes-Bibliography Style Bibliography Page

While a reference list is required for papers written with the author-date system, a bibliography is not required for works written with the notes-and-bibliography system, though they are generally preferred. Once again, check with your instructor or publisher.

The bibliography includes sources cited in your paper and may list other sources you referenced in preparing the work but did not specifically cite.

For the most part, format the reference and bibliography pages the same way.

Either list starts on a new, blank page that comes at the end of your document.

• Title the document as References or Bibliography , depending on the CMOS citation system used in the document. Center that title word, but do not underline or put it in quotation marks.
• Leave two blank lines between the title and your first entry.
• Single space the lines of each entry; if the entry has more than one line, use a hanging indent for all subsequent lines (this just means the lines are indented, or “tabbed”).
• Leave one blank line between entries.
• Alphabetize entries by author’s name; if no author, then by the first word of the entry (probably the title of the article/work).

What to Include in Chicago-Style Reference and Bibliography Entries

Other than their titles, the only other difference between the reference and bibliography pages is regarding the placement of the publication date. On a reference list, place the year of publication immediately after the author’s name.

Major Elements

Include the following major elements in reference and bibliography entries and separate the elements with periods:

• Author’s name: last name first, with a comma separating the names. For example, Johnson, Joan.

Reminder: on a reference list , the publication date appears directly after the author’s name.

Title: Italicize titles of books and journals. Use quotation marks for titles of articles, chapters, short stories, or poems.

Publication information: Name of journal (or larger work in which the cited article, chapter, etc., appears), publisher, year of publication.

If additional information about the source is available:

• After the title, include others involved in producing the work (editors, translators, compilers); edition number if the work is not the first edition; volume or series numbers.
• After publication information, include page numbers; URLs, or DOIs (digital object identifiers) of sources accessed through electronic databases.

By acknowledging the author of a source cited in your paper, you do the following:

• Uphold standards of intellectual and academic honesty by acknowledging the authors of the information you’ve borrowed for your paper. It’s never okay to try to pass off someone else’s work or ideas as your own—that is called plagiarism.

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Establish credibility by including the voices and works of others as support for your ideas, arguments, or proposals. When you do this, you validate the credibility of your ideas.

Help your readers by leading them to the source of each of your citations. Should they want to investigate further, your citations will lead to your reference page, which provides the location of your source.

The Chicago Manual of Style offers versatility for writers, allowing them to adapt their citations to the style that suits their work (or their instructor’s or publisher’s request), while ensuring readers can easily identify and locate those cited sources for further investigation.

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Allison Bressmer

Allison Bressmer is a professor of freshman composition and critical reading at a community college and a freelance writer. If she isn’t writing or teaching, you’ll likely find her reading a book or listening to a podcast while happily sipping a semi-sweet iced tea or happy-houring with friends. She lives in New York with her family. Connect at linkedin.com/in/allisonbressmer.

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Chicago Style Guide - 17th Edition

• Chicago Style
• Title Page and Pagination
• Quotations and Signal Phrases
• Bibliography
• Chicago's Citation Parts
• Articles - Online
• Articles - Print
• Blogs and Social Media
• Government Publications
• Elders & Knowledge Keepers
• Other Sources
• Secondary Sources
• Generative AI Tools (e.g., ChatGPT, DALL·E 2)
• Author/Date (Scientific) System
• Need More Help?

Useful Links

• Chicago Manual of Style Online - Quick Guide
• Douglas College Library - Chicago Style Guide (PDF)
• Purdue OWL - Chicago Manual of Style (17th ed.)
• SFU Library - Chicago/Turabian (17th ed.) Citation Guide

Avoid Plagiarism

• Camosun Academic Integrity Guide
• Camosun Plagiarism Guide
• Douglas College Learning Centre - Paraphrasing Without Plagiarizing
• Purdue OWL - Avoiding Plagiarism
• SFU Library - Plagiarism Tutorial

Chicago Style Sample Research Paper

Formatting and Sample Paper

The formatting guidelines listed on this page, provide general best practices for formatting your work using the Chicago style. Detailed information about formatting your title page , using quotes and signal phrases , and creating a bibliography , can be found by navigating to various sub-pages of this "Formatting Your Paper" page.

Learning how to correctly format your research paper into Chicago style can seem overwhelming, especially if the style is new to you. One of the best ways to help visualize what your paper needs to look like is by checking out an example of a paper that has already been formatted correctly.

View this  sample Chicago style research paper   ( notes and bibliography/humanities system ) from Purdue OWL for examples on how to format:

• A title page
• Headers and page numbers
• A bibliography

For a sample paper in the Chicago author/date style , visit the "Author/Date (Scientific) System" page in this guide.

Paragraphs and Spacing

The first line of all new paragraphs should begin with an indent . You can use either the tab key or your word processor's indentation tool to make your indentations–just be sure to be consistent and use the same process throughout your paper.

Your paper should be double spaced throughout its main body , with the following exceptions: 

• Block quotations , table titles , and figure captions should be single-spaced . 
• ​An extra line of space should be inserted both before and after a block quotation. 

Entries in the bibliography and footnotes/ endnotes are single spaced within entries , but double-spaced between entries (unless your instructor prefers double-spacing throughout).​

Footnotes and Endnotes

• Notes can be either  footnotes   (placed at the  foot   (bottom) of the same page  as the referenced text) or  endnotes   (listed on a  separate sheet at the end  of the essay, before the bibliography).
• Other than placement in your document, footnotes and endnotes are  structured in exactly the same way .
• Notes are  numbered consecutively  throughout the paper. Most word processing programs (such as MS Word) handle footnotes automatically.
• Follow your instructors’ directions when deciding whether to use footnotes or endnotes.

To insert a footnote in a Microsoft Word document:

• Place the cursor after the text you want to cite.
• Click on the " References "   tab.
• In the " Footnotes " section , click on the " In sert Footnote " button.
• A superscript number 1 will appear after the text you want to cite.
• A superscript number 1 will also appear at the bottom of page.
• At the bottom of the page next to the superscript number, enter the citation information for your resource (see the citation examples in this guide for how to create footnotes).
• Repeat these steps to insert and consecutively number your footnotes.

Some instructors may ask you to use endnotes, instead of footnotes. For information on inserting endnotes, see the  Microsoft Office Tutorial .

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Attribution

This guide was adapted from the Chicago Style Guide by Cathy Rettberg at Menlo School Library.

• Chicago Manual of Style This link opens in a new window The time-tested guide to style, usage, and grammar in an accessible online format.

Your professors expect to receive papers that are properly formatted and laid out. Use the following guidelines when setting up your paper. It is easiest if you use the correct settings from the beginning; otherwise you will have to go back and reformat your paper.

Overall page layout

• One inch margins on sides, top and bottom.
• Use Times or Times New Roman 12 pt font.
• Double-space the text of the paper.
• Use left-justified text, which will have a ragged right edge. Do not use fully (newspaper-style) justified text.
• Use a 1/2" indent for paragraph beginnings, block quotes and hanging (bibliography) indents.
• Number the pages in the top right corner of the paper, beginning with the first page of text. It's a good idea to include your last name as well, in case pages become separated. Number straight through from the first text page to the final bibliography page but do not count any pages after the end of the text as part of your page count. (A five-page paper may also have a cover page, two pages of notes and one page of bibliography which is nine pieces of paper.)
• Center the title of your paper in the middle of the page, halfway down.
• Center your name directly under the title.
• Your professor's name, course title, and date should be written in three lines and centered at the bottom of the page.
• Use Times or Times New Roman 12 pt font for the title page. Do not try to make your cover page decorative by using bold , underline , or creative fonts.
• Do not put a page number on the cover page, and do not count it as part of the total page count.

Assemble your paper in the following order

• Cover/title page
• Body of the paper
• Appendix (if needed)

Bibliography

Names and numbers.

• Use full names of people and agencies/legislation the first time you use them. For agencies, include the acronym in parentheses after the full name when first used, e.g. Federal Emergency Relief Administration (FERA).
• After the first time you can refer to people by their last name or agencies/bills by their acronyms for the rest of the paper.
• Write out numbers lower than 100. (“All nine members of the Supreme Court...”)

Footnotes and endnotes

• Footnotes go at the bottom of the page where the reference occurs; endnotes go on a separate page after the body of the paper. Both use the same formatting guidelines.
• Within the essay text: put the note number at the end of the sentence where the reference occurs, even if the cited material is mentioned at the beginning of the sentence.
• The note number goes after all other punctuation.
• Be sure to use Arabic numerals (1, 2, 3) nor Roman (i, ii, iii).
• Put the word Notes (not Endnotes) at the top of the page with your endnotes. Use Times/Times New Roman 10 pt font.
• Single space each entry; double space between entries.
• Indent the first line of each note.
• Never reuse a number - use a new number for each reference, even if you have used that reference previously.
• Be sure to look at shortened form examples for sources you refer to more than once.
• To cite multiple sources in a single note, separate the two citations with a semicolon. Never use two note numbers at the end of a sentence.
• Your bibliography should go on a separate page, with the word Bibliography centered at the top of the page in Times/Times New Roman 12 pt font. Do not use bold or large size font for the heading.
• Be sure to use proper formatting - note and bibliography styles are different.
• Use a "hanging indent" - the first line of the citation begins at the margin, subsequent lines are indented.
• If your source has no author, alphabetize by title within the authors - don't make a separate list.
• Don't separate primary and secondary sources unless your professor requests it.

Watch out for these common errors:

• Note format uses first name last name, bibliography uses last name, first name.
• In your notes, do not reuse numbers! Each citation gets a new number.
• Pay attention to indents. Notes use a first line indent, a bibliography uses a hanging indent.
• A bibliography goes in alphabetical order by author (or title if there is no author). Notes are numbered and are listed in the order the sources are used.
• Don't put Works Cited at the top of your bibliography - that is MLA style.
• Next: Sample Pages >>
• Last Updated: Jul 25, 2024 9:14 AM
• URL: https://guide.unwsp.edu/chicago_style

The Chicago Manual of Style, explained

The Chicago Manual of Style is an American English style guide published by the University of Chicago Press. The Manual ’s guidelines for publishing, style and usage, and citations and indexes—known as “Chicago style” rules and recommendations—are among the most widely used in the United States, especially in academic and book publishing.

Jump to a section:

• What is The Chicago Manual of Style?

What is the history of The Chicago Manual of Style?

What is turabian style, what makes something definitively chicago style, what is a chicago-style citation is a quick reference available for chicago style, what is the difference between chicago style, ap style, mla style, and apa style in what contexts is chicago style used most often.

• How did The Chicago Manual of Style become a standard reference?

What is The Chicago Manual of Style ?

The Chicago Manual of Style is an American English style and usage guide published continuously by the University of Chicago Press since 1906. Today, it is used widely in many academic disciplines and is considered the standard for US style in book publishing.

The Chicago Manual of Style has become a staple reference for writers and editors, in part because it was one of the first style guides to be published in book form, and the only one from an academic press in North America. (Other style guides are published by professional associations.) Eventually, the Manual became a canonical work synonymous with its home institution, akin to the Oxford English Dictionary .

The Manual is now in its 17th edition, published in 2017. Sometimes referred to by its acronym, CMOS (pronounced like “sea moss”), The Chicago Manual of Style is available both in print and online , for an annual subscription fee. A free Chicago style Q&A and other resources are also available to the public on the CMOS website.

Grammar enthusiasts celebrate “Chicago style” rules, such as whether to put the title of a book in italics (Chicago style says yes, whereas AP style recommends quotation marks), or whether to use a serial comma—also known as an “Oxford” comma (Chicago style: yes; AP style: no). However, the editors at the University of Chicago Press acknowledge that rules are often context-dependent, and sometimes need to be broken. The Manual is thus also respected for its flexibility.

Opening in 1891, the University of Chicago Press was one of the original divisions of the University of Chicago (founded in 1890). The staff at the Press soon decided that maintaining a consistent, professional style would be essential to streamlining the Press’s publishing across many disciplines, and drew up an initial style sheet that was circulated to the university community.

The first iteration of the   Manual as we know it today was published in 1906 as Manual of Style: Being a Compilation of the Typographical Rules in Force at the University of Chicago Press, to Which Are Appended Specimens of Type in Use.

The Manual has been revised numerous times, including a major revision—the 12th edition in 1969—that definitively established the Manual as an industry leader on style matters. The first edition to incorporate “Chicago” in the title was the 13th edition, published in 1982; previous titles had been variations on A Manual of Style . The change reflected the way readers typically referred to the manual.

Over the years, each edition has sought to address contemporary questions from readers that have arisen via the continued evolution of language and technology. For example, the proliferation of computers—including digital publishing techniques facilitated by the internet and social media—have created a host of new style-related questions, many of which are addressed in recent editions.

Historical content adapted from The Chicago Manual of Style Online .

The term “Turabian” or “Turabian style” refers to the style guidelines that serve as a standard reference for college and graduate students writing research papers, providing an introduction to Chicago-style formatting and citation.

The guidelines were first set forth in 1937 by Kate L. Turabian—then the University of Chicago’s graduate school dissertation secretary—who wrote the pamphlet that became A Manual for Writers of Research Papers, Theses, and Dissertations . Now in its ninth edition, with multiple contributing writers and editors, Turabian (as it is usually known) continues to emphasize the value of strong research questions, evidence-based arguments, logical structure, and source citation.

The Turabian style guide is published by the University of Chicago Press and closely follows The Chicago Manual of Style , such that the term “Chicago/Turabian” is also used in some instances. The primary differences are the scope of the Turabian guide, which is narrower than that of CMOS , and its target audience of students. More information about the Turabian style guide and its history  is available on The Chicago Manual of Style ’s website.

When people talk about “Chicago style” rules, they are most often referring either to punctuation or source citations. In the case of punctuation, Chicago is the standard for US style in book publishing, whereas Oxford style is generally associated with British style. Some examples of a few notable differences are below:

• Chicago prefers double quotation marks (“like this”); Oxford prefers single (‘like this’).
• In Chicago style, periods and commas go inside closing quotation marks, “like this,” whereas Oxford puts them after, ‘like this’, though there are exceptions (and exceptions are generally made in British style for fiction and journalism).
• Chicago uses em dashes with no space before or after—like this. Usage at Oxford varies, but in British style many publishers prefer spaced en dashes – like this.
• Oxford style is usually associated with the “Oxford comma”—the comma before the conjunction in a series of three or more (like the one before “and” in “apples, oranges, and pears”). But this comma has also always been Chicago style. CMOS refers to it as a “serial comma.”
• On spelling, Chicago prefers the spellings at Merriam-Webster.com; Oxford follows Oxford’s dictionaries, starting with the Oxford English Dictionary .

Source citations involve the use of numbered notes and a bibliography, each styled and punctuated in a specific way, or author-date citations. Chicago’s citation style, like many of its other rules, goes back to the first edition and its focus on academic publishing. For more information about Chicago-style citations, read on.

This section was adapted from content contributed by Russell Harper, the editor of The Chicago Manual of Style’s Online Q&A.

For detailed information about Chicago-style citations and references, visit the CMOS website and Citation Quick Guide . In general, Chicago-style citations use either an author-date format or numbered notes and a bibliography.

Here is an example of an author-date citation, as it would appear in the text of an essay citing a book:

The primary cheeses used in Chicago-style pizza are mozzarella, Parmesan, and Romano (Bruno 1983, 4).

Here is a full citation for the same book, as it would appear at the end in a list of works cited:

Bruno, Pasquale, Jr. The Great Chicago-Style Pizza Cookbook . New York: McGraw-Hill, 1983.

Here is how the same book would appear as a footnote with a corresponding reference:

Sentence from essay: For best results, stick to high-quality tomatoes, and avoid adding tomato paste to your Chicago-style pizza sauce.¹

Reference at the bottom of the page or end of the text: 1. Pasquale Bruno Jr., The Great Chicago-Style Pizza Cookbook (New York: McGraw-Hill, 1983), 3.

Many English style and usage guides exist, and many organizations have their own in-house guides. Some guides are specific to particular fields like law, whereas others have more general applications.

There are many guides in publishing, media, and academia, but four predominate. These are the Associated Press Stylebook (AP style), The Chicago Manual of Style (Chicago style), the Modern Language Association’s MLA Handbook (MLA style), and the Publication Manual of the American Psychological Association (APA style). AP style is the standard in journalism, while MLA style is popular in classroom instruction and in some academic disciplines. APA style is often used in the social sciences and related academic fields.

Chicago style is comprehensive, and can address most questions relevant to writing, editing, and publishing in any discipline. Intended originally as a guide for publishers of academic books and journals, it is especially popular in the humanities and social sciences. Chicago style is also used widely by students and by publishers of novels and trade books.

Here is an example of the differences between Chicago style and AP style on common questions, such as styling titles in italics or quotations marks, the use of serial or “Oxford” commas, and possessive nouns ending in the letter “s”:

Chicago style: After Harry Styles’s tour in support of his album Fine Line stopped at the United Center, the pop star made sure to pick up some Chicago-style pizza, hot dogs, and popcorn.

AP style: After Harry Styles’ tour in support of his album “Fine Line” stopped at the United Center, the pop star made sure to pick up some Chicago-style pizza, hot dogs and popcorn.

Though either guide’s recommendations might seem prescriptive, English is a fraught language, with many potential gray areas. The editors at the University of Chicago Press (like those at AP) have sought to establish clarity and consistency while at the same time remaining flexible and cognizant of the fact that context may call for individual discretion on style matters.

How did  The Chicago Manual of Style become a standard reference?

The Chicago Manual of Style became a standard reference in part because of its early publication date at a time when university press publishing in the United States was just getting off the ground. Today, the University of Chicago Press is considered the largest academic press in the United States. It is also one of the oldest continuously publishing presses, according to the Association of American University Presses , with Johns Hopkins University Press (founded in 1878) being the oldest.

The University of Chicago Press quickly began to establish itself as a leading American university press, publishing the first edition of the Manual in 1906, before some competing presses, like those at Yale University (1908) and Harvard University (1913), had even been established.

In the United Kingdom, however, Oxford University Press began publishing its own style guide, originally titled Rules for Compositors and Readers at the University Press, Oxford , in 1904 (two years before Chicago). Known informally as “Hart’s Rules,” after the original author, Horace Hart, the Oxford style guide continues to be published today, with the most recent edition titled New Oxford Style Manual (2016).

Oxford University Press and other presses such as Cambridge University Press are older than any North American university press. Oxford traces the founding of its press to the 16th century (as does Cambridge). However, both the University of Chicago and the University of Oxford made their style guides available to the public before competitors early in the 20th century, which helped ensure their influence since then.

University of Chicago faculty, students, and staff can access The Chicago Manual of Style Online from the Library home page .

Editor’s Note: UChicago News follows journalistic convention, meaning that most of our coverage is published in AP style. However, an exception has been made for this piece, which is published in Chicago style in keeping with its subject matter.

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How to Format Your Research Paper

• APA 7 Paper Format
• MLA Paper Format

Writing Your Paper: Chicago

Chicago style papers.

• Hanging Indents
• Ask a Librarian

Chicago Style Resources

• How Do I Format My Class Paper in Chicago Style? If your instructor has specific requirements for the format of your research paper, check with them before preparing your final draft. The most common formatting is presented here.

Things to know before you begin:

• Font:  Times New Roman  
• Font Size:  12 point
• Margins:  1 inch
• Paragraphs: All paragraphs should be indented.
• Spacing: All of the text in the body of your paper should be double-spaced.

Typical Chicago style papers have three sections:

• Bibliography

See the tabs below for a breakdown of how each portion should be formatted.

• Sample Papers

Below you will find an example of an accurately formatted CMOS paper. 

• Sample Paper Chicago Style - PDF Click here to see a sample of an accurately formatted CMOS paper.
• Sample Paper Chicago Style - Word Click here to see a sample of an accurately formatted CMOS paper.

• Your title should be centered and place a third of the way down the page. Use Times New Roman 12-point font.
• Capitalize all the words in your title. If there is a subtitle, place it on the second line.
• Place your course name first, then your name, then the due date of the paper. This should be double-spaced and placed in the bottom third of your paper. 

• Start the body of your paper on the first line of a new page.
• Insert the page number in the top right corner of the page using the header function.
• CMS uses footnotes. Place the footnote after any punctuation. Each number must have an entry at the bottom of the page.

• Center the word "Bibliography" on the first line of a new page.
• Your citations should be alphabetical.
• Each entry is single-spaced with one blank line separating entries.
• Be sure to use a hanging indent for any citations that require more than one line.

Need help formatting your Chicago/Turabian style citations using the 17th edition of the  Chicago Manual of Style ? Click the image or link below to go to the citation guide.

• Chicago Style Citations

Need help learning what hanging indents are and how to create them using Google Docs or Microsoft Word? 

• Hanging Indents This page gives a brief description of what they are, where to find information on when and how to properly use them, and also video tutorials on how to create them.

Need help learning what footnotes are and  how to create them  using Google Docs or Microsoft Word? 

• Footnotes This page gives a brief description of what they are, where to find information on when and how to properly use them, and also video tutorials on how to create them.
• << Previous: MLA Paper Format
• Next: Footnotes >>
• Last Updated: Jul 19, 2024 3:41 PM
• URL: https://necc.mass.libguides.com/formatting

To cite this LibGuide use the following templates:

APA : Northern Essex Community College Library. (Date updated). Title of page . Title of LibGuide. URL

MLA : Northern Essex Community College Library. "Title of Page." Title of LibGuide, Date updated, URL.

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The 3 Popular Essay Formats: Which Should You Use?

General Education

Not sure which path your essay should follow? Formatting an essay may not be as interesting as choosing a topic to write about or carefully crafting elegant sentences, but it’s an extremely important part of creating a high-quality paper. In this article, we’ll explain essay formatting rules for three of the most popular essay styles: MLA, APA, and Chicago.

For each, we’ll do a high-level overview of what your essay’s structure and references should look like, then we include a comparison chart with nitty-gritty details for each style, such as which font you should use for each and whether they’re a proponent of the Oxford comma. We also include information on why essay formatting is important and what you should do if you’re not sure which style to use.

Why Is Your Essay Format Important?

Does it really matter which font size you use or exactly how you cite a source in your paper? It can! Style formats were developed as a way to standardize how pieces of writing and their works cited lists should look. 

Why is this necessary? Imagine you’re a teacher, researcher, or publisher who reviews dozens of papers a week. If the papers didn’t follow the same formatting rules, you could waste a lot of time trying to figure out which sources were used, if certain information is a direct quote or paraphrased, even who the paper’s author is. Having essay formatting rules to follow makes things easier for everyone involved. Writers can follow a set of guidelines without trying to decide for themselves which formatting choices are best, and readers don’t need to go hunting for the information they’re trying to find.

Next, we’ll discuss the three most common style formats for essays.

MLA Essay Format

MLA style was designed by the Modern Language Association, and it has become the most popular college essay format for students writing papers for class. It was originally developed for students and researchers in the literature and language fields to have a standardized way of formatting their papers, but it is now used by people in all disciplines, particularly humanities. MLA is often the style teachers prefer their students to use because it has simple, clear rules to follow without extraneous inclusions often not needed for school papers. For example, unlike APA or Chicago styles, MLA doesn’t require a title page for a paper, only a header in the upper left-hand corner of the page.

MLA style doesn’t have any specific requirements for how to write your essay, but an MLA format essay will typically follow the standard essay format of an introduction (ending with a thesis statement), several body paragraphs, and a conclusion.

One of the nice things about creating your works cited for MLA is that all references are structured the same way, regardless of whether they’re a book, newspaper, etc. It’s the only essay format style that makes citing references this easy! Here is a guide on how to cite any source in MLA format. When typing up your works cited, here are a few MLA format essay rules to keep in mind:

• The works cited page should be the last paper of your paper.
• This page should still be double-spaced and include the running header of your last name and page number.
• It should begin with “Works Cited” at the top of the page, centered.
• Your works cited should be organized in alphabetical order, based on the first word of the citation.

APA Essay Format

APA stands for the American Psychological Association. This format type is most often used for research papers, specifically those in behavioral sciences (such as psychology and neuroscience) and social sciences (ranging from archeology to economics). Because APA is often used for more research-focused papers, they have a more specific format to follow compared to, say, MLA style.

All APA style papers begin with a title page, which contains the title of the paper (in capital letters), your name, and your institutional affiliation (if you’re a student, then this is simply the name of the school you attend). The APA recommends the title of your paper not be longer than 12 words.

After your title page, your paper begins with an abstract. The abstract is a single paragraph, typically between 150 to 250 words, that sums up your research. It should include the topic you’re researching, research questions, methods, results, analysis, and a conclusion that touches on the significance of the research. Many people find it easier to write the abstract last, after completing the paper.

After the abstract comes the paper itself. APA essay format recommends papers be short, direct, and make their point clearly and concisely. This isn’t the time to use flowery language or extraneous descriptions. Your paper should include all the sections mentioned in the abstract, each expanded upon.

Following the paper is the list of references used. Unlike MLA style, in APA essay format, every source type is referenced differently. So the rules for referencing a book are different from those for referencing a journal article are different from those referencing an interview. Here’s a guide for how to reference different source types in APA format . Your references should begin on a new page that says “REFERENCES” at the top, centered. The references should be listed in alphabetical order.

Chicago Essay Format

Chicago style (sometimes referred to as “Turabian style”) was developed by the University of Chicago Press and is typically the least-used by students of the three major essay style formats. The Chicago Manual of Style (currently on its 17th edition) contains within its 1000+ pages every rule you need to know for this style. This is a very comprehensive style, with a rule for everything. It’s most often used in history-related fields, although many people refer to The Chicago Manual of Style for help with a tricky citation or essay format question. Many book authors use this style as well.

Like APA, Chicago style begins with a title page, and it has very specific format rules for doing this which are laid out in the chart below. After the title page may come an abstract, depending on whether you’re writing a research paper or not. Then comes the essay itself. The essay can either follow the introduction → body → conclusion format of MLA or the different sections included in the APA section. Again, this depends on whether you’re writing a paper on research you conducted or not.

Unlike MLA or APA, Chicago style typically uses footnotes or endnotes instead of in-text or parenthetical citations. You’ll place the superscript number at the end of the sentence (for a footnote) or end of the page (for an endnote), then have an abbreviated source reference at the bottom of the page. The sources will then be fully referenced at the end of the paper, in the order of their footnote/endnote numbers. The reference page should be titled “Bibliography” if you used footnotes/endnotes or “References” if you used parenthetical author/date in-text citations.

Comparison Chart

Below is a chart comparing different formatting rules for APA, Chicago, and MLA styles.

How Should You Format Your Essay If Your Teacher Hasn’t Specified a Format?

What if your teacher hasn’t specified which essay format they want you to use? The easiest way to solve this problem is simply to ask your teacher which essay format they prefer. However, if you can’t get ahold of them or they don’t have a preference, we recommend following MLA format. It’s the most commonly-used essay style for students writing papers that aren’t based on their own research, and its formatting rules are general enough that a teacher of any subject shouldn’t have a problem with an MLA format essay. The fact that this style has one of the simplest sets of rules for citing sources is an added bonus!

What's Next?

Thinking about taking an AP English class? Read our guide on AP English classes to learn whether you should take AP English Language or AP English Literature (or both!)

Compound sentences are an importance sentence type to know. Read our guide on compound sentences for everything you need to know about compound, complex, and compound-complex sentences.

Need ideas for a research paper topic? Our guide to research paper topics has over 100 topics in ten categories so you can be sure to find the perfect topic for you.

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Notes and Bibliography: Sample Citations

Go to Author-Date: Sample Citations

The following examples illustrate the notes and bibliography system. Sample notes show full citations followed by shortened citations for the same sources. Sample bibliography entries follow the notes. For more details and many more examples, see chapters 13 and 14 of The Chicago Manual of Style . For examples of the same citations using the author-date system, follow the Author-Date link above.

Note that a place of publication is no longer required in book citations (see CMOS 14.30 ).

1. Charles Yu, Interior Chinatown (Pantheon Books, 2020), 45.

2. Amy J. Binder and Jeffrey L. Kidder, The Channels of Student Activism: How the Left and Right Are Winning (and Losing) in Campus Politics Today (University of Chicago Press, 2022), 117–18.

Shortened notes

3. Yu, Interior Chinatown , 48.

4. Binder and Kidder, Channels of Student Activism , 125.

Bibliography entries (in alphabetical order)

Binder, Amy J., and Jeffrey L. Kidder. The Channels of Student Activism: How the Left and Right Are Winning (and Losing) in Campus Politics Today . University of Chicago Press, 2022.

Yu, Charles. Interior Chinatown . Pantheon Books, 2020.

For more details and examples, see CMOS 13.21–26 and 14.2–62 .

Chapter or other part of an edited book

The page range for a chapter in a book is no longer required in bibliography entries (see CMOS 14.8 ). In a note, cite specific pages as applicable.

1. Kathleen Doyle, “The Queen Mary Psalter,” in The Book by Design: The Remarkable Story of the World’s Greatest Invention , ed. P. J. M. Marks and Stephen Parkin (University of Chicago Press, 2023), 64.

Shortened note

2. Doyle, “Queen Mary Psalter,” 65.

Bibliography entry

Doyle, Kathleen. “The Queen Mary Psalter.” In The Book by Design: The Remarkable Story of the World’s Greatest Invention , edited by P. J. M. Marks and Stephen Parkin. University of Chicago Press, 2023.

In some cases, you may want to cite the collection as a whole instead.

1. P. J. M. Marks and Stephen Parkin, eds., The Book by Design: The Remarkable Story of the World’s Greatest Invention (University of Chicago Press, 2023).

2. Marks and Parkin, Book by Design .

Marks, P. J. M., and Stephen Parkin, eds. The Book by Design: The Remarkable Story of the World’s Greatest Invention . University of Chicago Press, 2023.

For more details and examples, see CMOS 14.8–14 .

Translated book

In the following examples, the author’s name follows Eastern order (family name first) rather than Western order (family name last); the author is therefore referred to as “Liu” in a shortened note, and the name is not inverted in a bibliography entry. See CMOS 13.75 for more details.

1. Liu Xinwu, The Wedding Party , trans. Jeremy Tiang (Amazon Crossing, 2021).

2. Liu, Wedding Party , 279.

Liu Xinwu. The Wedding Party . Translated by Jeremy Tiang. Amazon Crossing, 2021.

For more details and examples, see CMOS 14.5–7 .

Book Consulted in an Electronic Format

To cite a book consulted online, include either a URL or the name of the database. For downloadable ebook formats, name the format; if no fixed page numbers are available, cite a section title or a chapter or other number in the note (or simply omit). For citing a place rather than a publisher for books published before 1900 (as in the Moby-Dick example below), see CMOS 14.31.

1. Arundhati Roy, The God of Small Things (Random House, 2008), chap. 6, Kindle.

2. Philip B. Kurland and Ralph Lerner, eds., The Founders’ Constitution (University of Chicago Press, 1987), chap. 10, doc. 19, https://press-pubs.uchicago.edu/founders/.

3. Brooke Borel, The Chicago Guide to Fact-Checking , 2nd ed. (University of Chicago Press, 2023), 92, EBSCOhost.

4. Herman Melville, Moby-Dick; or, The Whale (New York, 1851), 627, https://melville.electroniclibrary.org/moby-dick-side-by-side.

5. Roy, God of Small Things , chap. 7.

6. Kurland and Lerner, Founder s ’ Constitution , chap. 4, doc. 29.

7. Borel, Fact-Checking , 104–5.

8. Melville, Moby-Dick , 722–23.

Borel, Brooke. The Chicago Guide to Fact-Checking . 2nd ed. University of Chicago Press, 2023. EBSCOhost.

Kurland, Philip B., and Ralph Lerner, eds. The Founders’ Constitution . University of Chicago Press, 1987. https://press-pubs.uchicago.edu/founders/.

Melville, Herman. Moby-Dick; or, The Whale . New York, 1851. https://melville.electroniclibrary.org/moby-dick-side-by-side.

Roy, Arundhati. The God of Small Things . Random House, 2008. Kindle.

For more details and examples, see CMOS 14.58–62 .

Journal article

Journal articles are usually cited by volume and issue number. In a note, cite specific page numbers. In the bibliography, include the page range for the whole article. For articles consulted online, include a URL (preferably one based on a DOI; see CMOS 13.7); alternatively, list the name of the database.

1. Hyeyoung Kwon, “Inclusion Work: Children of Immigrants Claiming Membership in Everyday Life,” American Journal of Sociology 127, no. 6 (2022): 1842–43, https://doi.org/10.1086/720277.

2. B. T. Hebert, “The Island of Bolsö: A Study of Norwegian Life,” Sociological Review 17, no. 4 (1925): 310, EBSCOhost.

3. Benjamin Lindquist, “The Art of Text-to-Speech,” Critical Inquiry 50, no. 2 (2023): 230, https://doi.org/10.1086/727651.

4. Emily L. Dittmar and Douglas W. Schemske, “Temporal Variation in Selection Influences Microgeographic Local Adaptation,” American Naturalist 202, no. 4 (2023): 480, https://doi.org/10.1086/725865.

5. Kwon, “Inclusion Work,” 1851.

6. Hebert, “Island of Bolsö,” 311.

7. Lindquist, “Text-to-Speech,” 231–32.

8. Dittmar and Schemske, “Temporal Variation,” 480.

Dittmar, Emily L., and Douglas W. Schemske. “Temporal Variation in Selection Influences Microgeographic Local Adaptation.” American Naturalist 202, no. 4 (2023): 471–85. https://doi.org/10.1086/725865.

Hebert, B. T. “The Island of Bolsö: A Study of Norwegian Life.” Sociological Review 17, no. 4 (1925): 307–13. EBSCOhost.

Kwon, Hyeyoung. “Inclusion Work: Children of Immigrants Claiming Membership in Everyday Life.” American Journal of Sociology 127, no. 6 (2022): 1818–59. https://doi.org/10.1086/720277.

Lindquist, Benjamin. “The Art of Text-to-Speech.” Critical Inquiry 50, no. 2 (2023): 225–51. https://doi.org/10.1086/727651.

Journal articles often list many authors, especially in the sciences. For works by two authors, list both in the bibliography and in a note (as in the Dittmar and Schemske example above). For three or more authors, list up to six in the bibliography; for more than six authors, list the first three, followed by “et al.” (“and others”). In a note, list only the first, followed by “et al.” Note that the bibliography entry for the Dror example below (which credits eighteen authors) includes an article ID in place of a page range; in a note, specific page numbers may be cited as shown (see CMOS 14.71 for details).

7. Amiel A. Dror et al., “Pre-Infection 25-Hydroxyvitamin D3 Levels and Association with Severity of COVID-19 Illness,” PLOS ONE 17, no. 2 (2022): 4–5, e0263069, https://doi.org/10.1371/journal.pone.0263069.

8. Dror et al., “Pre-Infection,” 7.

Dror, Amiel A., Nicole Morozov, Amani Daoud, et al. “Pre-Infection 25-Hydroxyvitamin D3 Levels and Association with Severity of COVID-19 Illness.” PLOS ONE 17, no. 2 (2022): e0263069. https://doi.org/10.1371/journal.pone.0263069.

For more details and examples, see CMOS 14.67–86 .

News or magazine article

Articles from newspapers or news sites, magazines, blogs, and the like are cited similarly. Page numbers, if any, can be cited in a note but are omitted from a bibliography entry. For articles consulted online, include a URL or the name of the database.

1. Dani Blum, “Are Flax Seeds All That?,” New York Times , December 13, 2023, https://www.nytimes.com/2023/12/13/well/eat/flax-seeds-benefits.html.

2. Rebecca Mead, “Terms of Aggrievement,” New Yorker , December 18, 2023, 21.

3. Rob Pegoraro, “Apple’s iPhone Is Sleek, Smart and Simple,” Washington Post , July 5, 2007, LexisNexis Academic.

4. Elana Klein, “Meet Flip, the Viral Video App Giving Away Free Stuff,” Wired , December 21, 2023, https://www.wired.com/story/flip-viral-video-app-shopping-free-stuff/.

5. Blum, “Flax Seeds.”

6. Mead, “Terms of Aggrievement,” 23–24.

7. Pegoraro, “Apple’s iPhone.”

8. Klein, “Meet Flip.”

Blum, Dani. “Are Flax Seeds All That?” New York Times , December 13, 2023. https://www.nytimes.com/2023/12/13/well/eat/flax-seeds-benefits.html.

Klein, Elana. “Meet Flip, the Viral Video App Giving Away Free Stuff.” Wired , December 21, 2023. https://www.wired.com/story/flip-viral-video-app-shopping-free-stuff/.

Mead, Rebecca. “Terms of Aggrievement.” New Yorker , December 18, 2023.

Pegoraro, Rob. “Apple’s iPhone Is Sleek, Smart and Simple.” Washington Post , July 5, 2007. LexisNexis Academic.

Readers’ comments are cited in the text or in a note but omitted from a bibliography.

9. Michelle (Reno), December 15, 2023, comment on Blum, “Flax Seeds.”

For more details and examples, see CMOS 14.87–88 (magazines) and 14.89–98 (newspapers and news sites).

Book review

1. Alexandra Jacobs, “The Muchness of Madonna,” review of Madonna: A Rebel Life , by Mary Gabriel, New York Times , October 8, 2023.

2. Jacobs, “Muchness of Madonna.”

Jacobs, Alexandra. “The Muchness of Madonna.” Review of Madonna: A Rebel Life , by Mary Gabriel. New York Times , October 8, 2023.

Interviews are usually cited under the name of the interviewee rather than the interviewer.

1. Joy Buolamwini, “ ‘If You Have a Face, You Have a Place in the Conversation About AI,’ Expert Says,” interview by Tonya Mosley, Fresh Air , NPR, November 28, 2023, audio, 37:58, https://www.npr.org/2023/11/28/1215529902/unmasking-ai-facial-recognition-technology-joy-buolamwini.

2. Buolamwini, interview.

Buolamwini, Joy. “ ‘If You Have a Face, You Have a Place in the Conversation About AI,’ Expert Says.” Interview by Tonya Mosley. Fresh Air , NPR, November 28, 2023. Audio, 37:58. https://www.npr.org/2023/11/28/1215529902/unmasking-ai-facial-recognition-technology-joy-buolamwini.

For more details and examples, see CMOS 14.108 , 14.109 , and 14.110 .

Thesis or dissertation

1. Yuna Blajer de la Garza, “A House Is Not a Home: Citizenship and Belonging in Contemporary Democracies” (PhD diss., University of Chicago, 2019), 66–67, ProQuest (13865986).

2. Blajer de la Garza, “House,” 93.

Blajer de la Garza, Yuna. “A House Is Not a Home: Citizenship and Belonging in Contemporary Democracies.” PhD diss., University of Chicago, 2019. ProQuest (13865986).

For more details and examples, see CMOS 14.113 .

It is often sufficient simply to describe web pages and other website content in the text (“As of November 15, 2023, Google’s privacy policy stated . . .”). If a more formal citation is needed, it may be styled like the examples below. If a source does not list a date of publication or revision, include an access date. Alternatively, if a publicly available archive of the content has been saved using the Internet Archive’s Wayback Machine or similar service, the link for that version may be cited.

1. “Privacy Policy,” Privacy & Terms, Google, effective November 15, https://policies.google.com/privacy.

2. “Wikipedia: Manual of Style,” Wikimedia Foundation, last modified December 19, 2023, 21:54 (UTC), https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style.

3. “About Yale: Yale Facts,” Yale University, accessed March 8, 2022, https://www.yale.edu/about-yale/yale-facts.

3. “About Yale: Yale Facts,” Yale University, archived March 8, 2022, at https://web.archive.org/web/20220308143337/https://www.yale.edu/about-yale/yale-facts.

4. Google, “Privacy Policy.”

5. “Wikipedia: Manual of Style.”

6. “Yale Facts.”

In the notes, the title will usually come first (as in the examples above); in a bibliography entry, the source should be listed under the owner or sponsor of the site.

Google. “Privacy Policy.” Privacy & Terms. Effective November 15, 2023. https://policies.google.com/privacy.

Wikimedia Foundation. “Wikipedia: Manual of Style.” Last modified December 19, 2023, at 21:54 (UTC). https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style.

Yale University. “About Yale: Yale Facts.” Accessed March 8, 2022. https://www.yale.edu/about-yale/yale-facts.

Yale University. “About Yale: Yale Facts.” Archived March 8, 2022, at https://web.archive.org/web/20220308143337/https://www.yale.edu/about-yale/yale-facts.

For more details and examples, see CMOS 14.104 .

Social media content

Citations of content posted to social media can usually be limited to the text (as in the first example below). A note may be added if a more formal citation is needed. In rare cases, a bibliography entry may also be appropriate. In place of a title, quote up to the first 280 characters of the post. Comments are cited in reference to the original post.

The Instagram post included a photo of the president delivering a eulogy at the National Cathedral and referred to O’Connor as “gracious and principled” (@potus, December 19, 2023).

1. NASA Webb Telescope (@NASAWebb), “👀 Sneak a peek at the deepest & sharpest infrared image of the early universe ever taken—all in a day’s work for the Webb telescope. (Literally, capturing it took less than a day!),” Twitter (now X), July 11, 2022, https://twitter.com/NASAWebb/status/1546621080298835970.

2. Chicago Manual of Style, “Is the world ready for singular they? We thought so back in 1993,” Facebook, April 17, 2015, https://www.facebook.com/ChicagoManual/posts/10152906193679151.

3. NASA Webb Telescope, “👀 Sneak a peek.”

4. Michele Truty, April 17, 2015, 1:09 p.m., comment on Chicago Manual of Style, “singular they.”

Chicago Manual of Style. “Is the world ready for singular they? We thought so back in 1993.” Facebook, April 17, 2015. https://www.facebook.com/ChicagoManual/posts/10152906193679151.

For more details and examples, see CMOS 14.106 .

Video or podcast

1. Vaitea Cowan, “How Green Hydrogen Could End the Fossil Fuel Era,” TED Talk, Vancouver, BC, April 2022, 9 min., 15 sec., https://www .ted .com /talks /vaitea _cowan _how _green _hydrogen _could _end _the _fossil _fuel _era.

2. Eric Oliver, “Why So Many Americans Believe in So Many ‘Crazy’ Things,” moderated by Andrew McCall, virtual lecture, February 23, 2022, posted March 21, 2022, by University of Chicago, YouTube, 1:01:45, https://youtu.be/hfq7AnCF5bg.

3. Lauren Ober, host, The Loudest Girl in the World, season 1, episode 2, “Goodbye, Routine; Hello, Meltdown!,” Pushkin Industries, September 13, 2022, 41 min., 37 sec., https://www.pushkin.fm/podcasts/loudest-girl-in-the-world.

1. Cowan, “Green Hydrogen,” at 6:09–17.

2. Oliver, “Why.”

3. Ober, “Goodbye, Routine.”

Unless it is clear from context, “video” or the like may be specified in the bibliography.

Cowan, Vaitea. “How Green Hydrogen Could End the Fossil Fuel Era.” TED Talk, Vancouver, BC, April 2022. Video, 9 min., 15 sec. https://www .ted .com /talks /vaitea _cowan _how _green _hydrogen _could _end _the _fossil _fuel _era.

Ober, Lauren, host. The Loudest Girl in the World. Season 1, episode 2, “Goodbye, Routine; Hello, Meltdown!” Pushkin Industries, September 13, 2022. Podcast, 41 min., 37 sec. https://www.pushkin.fm/podcasts/loudest-girl-in-the-world.

Oliver, Eric. “Why So Many Americans Believe in So Many ‘Crazy’ Things.” Moderated by Andrew McCall. Virtual lecture, February 23, 2022. Posted March 21, 2022, by University of Chicago. YouTube, 1:01:45. https://youtu.be/hfq7AnCF5bg.

For more details and examples, see CMOS 14.167–69 .

Personal communication

Personal communications, including email and text messages and direct messages sent through social media, are usually cited in the text or in a note only; they are rarely included in a bibliography.

1. Sam Gomez, Facebook direct message to author, August 1, 2024.

For more details and examples, see CMOS 14.111 .

Chicago style sample papers 

Published March 8, 2021. Updated August 15, 2021.

In general, the following formatting guidelines apply for all Chicago/Turabian-style papers (based on Kate L. Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations, which adapts The Chicago Manual of Style ’s guidelines for articles and papers):

• Paper size: The paper should be written on a standard 8.5” x 11” page.
• Margins : The margins should be set to at least 1” and no more than 1.5” on all sides for all pages including the title page.
• Font: The paper should be written in a readable font that is accessible to all readers, such as 12-point Times New Roman, Calibri, or Courier, or 11-point Arial. Use one font consistently throughout the entire text. The font size should be no smaller than 10-point.
• Line spacing: The title page, body, and headings should be double-spaced. Block quotations (with a blank line before and after the block), bibliographies, reference lists, endnotes, and footnotes should be single-spaced (with a blank line between notes and reference list entries).
• First page: Papers should either begin with a title page or include a title on the first page of text.
• Indentation : The first line of each new paragraph of the main text should be indented 0.5” from the left.
• Quotations: Quotations of five or more lines should be indented as a block. Block quotations should be indented 0.5” from the left margin and do not use beginning or ending quotation marks.
• Page numbers: Every page except the title page should include a page number in an Arabic numeral. If there is no title page, the paper’s first page of body text should begin with an Arabic numeral “1.” If there is a title page, the paper’s first page of main text should begin with an Arabic numeral “2.” Place the page number either at the bottom center in the footer or the top right in the header. (Though theses or dissertations once called for page numbers to be placed in the footer for front matter, main text, and back matter, and for page numbers to be placed in the header for all other text, most schools now require consistent page number placement throughout a paper.)

For help writing your essay, research paper , or other project, check out these writing tips .

Paper order

In general, your paper should be put together in this order:

• Table of Contents (optional)
• List of Tables and Figures (optional)
• Introduction (optional)
• Body (with footnotes or in-text citations)
• Conclusion (optional)
• Appendixes (optional)
• Endnotes (optional)
• Bibliography or Reference List

Formatting for the title page

• From the top of the page, find a line about 1/3 of the way down the page and set the title (and subtitle) of the paper in bold.
• Capitalize each significant word using headline-style capitalization.
• Use the same font as the main text.
• When using subtitles, end the main title with a colon and start the subtitle on the following line.
• Double-space all text on the title page.

For student papers ONLY:

• Include course information several lines after the title and subtitle.
• course name and number
• due date of the assignment

For more information, visit this page on Chicago title pages.

Formatting for the abstract

Chicago rarely requires abstracts, which generally appear in scientific papers and journals.

For more information, visit this page on Chicago abstracts .

Formatting for the body of the paper

• When a title page is not required, write the title at the top of your first page of main text.
• Begin every new paragraph in the body of the paper on its own line with a 0.5” indentation; do this by pressing the Tab key once.
• Double-space the main text (except when using block quotations).
• Use only one space after a period, not two spaces.
• Start page numbering with the first page of body text, not the title page, and use Arabic numerals (1, 2, etc.). When there is a title page, start the first page of body text with page “2.” When there is no separate title page, start the first page of body text with page “1.”

Notes-Bibliography vs. Author-Date format

To cite references in the body of the paper, Chicago style follows either the author-date format (preferred for science and social science) or the notes-bibliography format (preferred for humanities) . Choose one format and use it consistently throughout the paper.

Author-Date

When using the author-date format, use in-text citations. To create an in-text citation, place the author’s last name and the publication year of the cited work in parentheses at the end of the quote or paraphrase. Do not separate the author’s last name and the publication year with a comma.

(Sato 2020)

If you quote a specific part of a text, you’ll also provide a specific page number or another location identifier in the in-text citation.

(Sato 2020, 203)

For author-date citations, include a reference list at the end of the paper with full source information.

For more author-date information, visit these pages on Chicago style in-text citations and Chicago style reference lists.

When using the notes-bibliography format, add a note (endnote or footnote) after each quotation, paraphrase, or summary. To create a note, insert a superscript number after any punctuation marks except the dash. Use the same number in the endnote or footnote providing full source information. The first note provides all source information while any subsequent notes may use a shortened citation with the author’s name, a shortened form of the title (if more than four words), and the page number(s).

For notes-bibliography citations, include a bibliography at the end of the paper with full source information.

For more information, visit these pages on Chicago style footnotes and Chicago style bibliographies .

Bibliography or reference list formatting

Both Chicago formats include a full list of sources at the end of a paper. Author-date format requires a reference list while notes-bibliography encourages (but does not require) a bibliography.

Here are formatting guidelines that apply to both lists:

• Begin the bibliography (Notes-Bib) or reference list (Author-Date) on a new page immediately following the last page of main text.
• Center the word “Bibliography” or “References” on the first line of the page. Add two blank lines after the title.
• Single-space each entry and add a blank line between entries.
• Begin each reference entry with a hanging indentation so that the first line of the reference touches the left margin while all subsequent lines have a 0.5” indent.
• Order reference list entries alphabetically by the author’s last name, followed by the first name(s) (last name, first name).

Apart from the guidelines above, there are some differences between creating a Chicago bibliography and reference list. For more information, visit these pages on styling a Chicago bibliography and Chicago reference list.

Notes-Bib example paper

Download the example paper here .

Author-Date example paper

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• Knowledge Base
• Chicago Style

Chicago Style Citation Examples | Website, Book, Article, Video

Published on July 25, 2018 by Courtney Gahan . Revised on April 9, 2024.

The Chicago Manual of Style provides guidelines for two styles of citation: author-date and notes and bibliography:

• In notes and bibliography style (mostly used in the humanities), you use footnotes or endnotes to cite sources.
• In author-date style (mostly used in the sciences), you use brief parenthetical references to cite sources in the text.

Chicago Citation Generator

In both styles, full source citations are listed in an alphabetized Chicago style bibliography or reference list . Make sure to pay attention to punctuation (e.g., commas , parentheses , and quotation marks ) in your notes and citations.

The Chicago Manual of Style is regularly updated. Our examples are all based on the 17th edition, which is the most recent (published in 2017).

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Table of contents

Chicago book citation, chicago journal article citation, chicago website citation (no author or date), chicago newspaper citation, chicago youtube citation.

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Linking to online journal articles

When citing online journal articles, use the Digital Object Identifier (DOI) or a stable URL, not the URL that appears in the address bar.

Authors and dates in website citations

If the web page has a named author, use this at the start of the citation as you would for any other source. If there is a date of publication or last revision, include this instead of the access date.

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If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Gahan, C. (2024, April 09). Chicago Style Citation Examples | Website, Book, Article, Video. Scribbr. Retrieved September 3, 2024, from https://www.scribbr.com/chicago-style/citation-examples/

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