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Chicago Citation Style 18th Edition

This guide will help you cite sources in Chicago Citation Style 18th Edition.

Basic Website

Numbers in parentheses refer to specific chapters and sections in The Chicago Manual (18th ed.) 

General Format

Full Note

1. Author First Name Surname, "Title of Page," Title or Owner of Site, date last modified or accessed, URL.

Shortened Note

2. Author Surname, "Title of Page."

Bibliography

Author Surname, First Name. "Title of Page." Title or Owner of Site. Date last modified or accessed. URL. 

Example

Full Note

1. K. A. Johnson and J. A. Becker, "The Whole Brain Atlas," Harvard University Medical School, accessed April 29, 2011, http://www.med.harvard.edu/AANLIB/. 

Shortened Note

2. Johnson and Becker, "The Whole Brain Atlas."

Bibliography

Johnson, K. A., and J. A. Becker. "The Whole Brain Atlas." Harvard University Medical School. Accessed April 29, 2011. https://www.med.harvar.edu/AANLIB/. 

Example 2

Full Note

1. "Samsung Privacy Policy," Samsung, updated July 1, 2024, https://www.samsung.com/us/account/privacy-policy/.

Shortened Note

2. "Samsung Privacy Policy," Samsung. 

Bibliography 

Samsung. "Samsung Privacy Policy." Updated July 1, 2024. https://www.samsung.com/us/account/privacy-policy/.

Tips

See The Chicago Manual (14.104) for more information on citing a basic website.
If there is no author, use the title or owner of the website, and move it to the author position.
The file type will not impact the citation. To cite a PDF source, determine the type of source (e.g. website, book, article, etc.) and use the format for that source type.

Canadian Government Publication from a Website

Numbers in parentheses refer to specific chapters and sections in The Chicago Manual (18th ed.) 

General Format

Full Note

1. Canada, Name of Government Body/Division, Publication Title, (Publisher, Year), URL.

Shortened Note

2. Canada, Name of Government Body/Division, Publication Title.

Bibliography

Canada. Name of Government Body/Division, Publication Title. Publisher, Year. URL.

Example

Full Note

1. Canada, Royal Commission on Aboriginal Peoples, Report, (Canada Communication Group Publishing, 1996), http://www.ainc-inac.gc.ca/ch/rcap/sg/sgmm_e.html.

Shortened Note

2. Canada, Royal Commission on Aboriginal Peoples, Report.

Bibliography

Canada. Royal Commission on Aboriginal Peoples. Report. Canada Communication Group Publishing, 1996. http://www.ainc-inac.gc.ca/ch/rcap/sg/sgmm_e.html. 

Online Reference Work

Numbers in parentheses refer to specific chapters and sections in The Chicago Manual (17th ed.) 

General Format [with author and editor (14.132)]

Full Note

1. Author First Name Surname, "Title of Entry," in Title of Reference Book, edited by Editor First Name Surname (Publisher, Year), URL.

Shortened Note

2. Author Surname, "Title of Entry."

Bibliography

Author Surname, First Name. "Title of Entry." In Title of Reference Book, edited by Editor First Name Surname. Publisher, Year. URL.

Example

Full Note

1. Sylvia Bruzzi, "Sainthood," in The Oxford Encyclopedia of Islam and Women, edited by Natana J. DeLong-Bas (Oxford University Press, 2013), https://doi.org/10.1093/acref:oiso/9780199764464.001.0001. 

Shortened Note

2. Bruzzi, "Sainthood."

Bibliography

Bruzzi, Sylvia. "Sainthood." In The Oxford Encyclopedia of Islam and Women, edited by Natana J. DeLong-Bas. Oxford University Press, 2013. https://doi.org/10.1093/acref:oiso/9780199764464.001.0001.  

General Format [no author or editor (14.131)]

Full Note

1. Source Name, "Title of Entry," Date of Access, URL.

Shortened Note

2. Source Name, "Title of Entry."

Bibliography

Source Name. "Title of Entry." Date of Access. URL. 

Example

Full Note

1. Merriam-Webster, "haptic (adj.)," accessed January 14, 2021, https://www.merriam-webster.com/dictionary/haptic. 

Shortened Note

2. Merriam-Webster, "haptic (adj.)."

Bibliography

Merriam-Webster. "haptic (adj.)." Accessed January 14, 2021. https://www.merriam-webster.com/dictionary/haptic. 

Tips

See The Chicago Manual (14.130 - 14.132) for more information on online reference works.
If there is no publication or revision date, supply an access date instead.
When citing reference sources the word “under” can be added for clarity, the 18th edition of the Chicago Manual of Style does not recommend using the Latin abbreviation s.v. (“under the word”).