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Albert S. Cook Library

Chicago Style: Author-Date Format

Learn to use Chicago Style Author-Date format to cite your sources.

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Films, Video, & Television

Online Video Clip

Reference list:

Antheil, George.  2006. "Ballet Mecanique: Exhibition at National Gallery of Art, March 12 – May 7." YouTube video, 9:54. Posted by “esinger3141”, July 2, 2006.

In-text citation:

(Antheil 2006)

Film or Video: DVD or VHS

For a commercial film include the producer, production company and its location, and format.

Reference list:

Returning Dreams. 2005. Produced and directed by Emily Marlow. Oley, PA: Bullfrog Films. DVD.

In-text citation:

(Returning Dreams 2005)

Film or Video Streamed from a Database

Reference list:

The Ottoman Empire. 1996. Films Media Group. Films On Demand.

In-text citation:

(Ottoman Empire 1996)

Television or Radio Program

Reference list:

“A Very Glee Christmas.” 2010. Glee. Fox Video, 42:59, December 7, 2010.

In-text citation:

(“Very Glee Christmas” 2010)


Information about paintings and other works of art can usually be presented within the next, rather than with a full in-text citation with Reference List entry.  If a Reference List entry is required, follow this pattern:

Artist name. Date of creation. Title of Work. Medium (and size, if known). Location of work (museum or gallery).

For works accessed online, add the name of the database or the URL.

Reference list:

Dali, Salvador. 1931. The Persistence of Memory. Oil on canvas. "9 1/2 x 13" (24.1 x 33 cm). Museum of Modern Art. New York.

In-text citation:

(Dali 1931)

Map, Chart, or Table

Refer to the medium of the image in your paper and site the source, including figure number shown in the original source of the illustration.  If there is no figure number, cite the page number.   For images retrieved online, if no date is given, use the date of access.

Reference list:

The Habsburg Territories 1814 - 1914. 1999. In Oxford Atlas of World History, edited by Patrick K. O’Brien, 175. New York: Oxford University Press.

In-text Citation:

(Habsburg Territories 1999, 175)

Published or Broadcast Interviews

Start the citation with the name of the person being interviewed; the interviewer is listed second.

Reference list:

Galbraith, John Kenneth. 1999. “Name Dropping: Interview with John Kenneth Galbraith.” By Howard Berkes, August 12.

In-text citation:

(Galbraith 1999)

Unpublished Thesis or Dissertation

Reference list:

Walker, Anne. 2010. "Mozart: A Musical Advocate."  PhD diss., Arizona State University.

In-text Citation:

Walker 2010, 43.

Social Media

Social media commentary may be entered directly in the text and identified by date, author, and the social platform used. No reference list entry is required.


The library welcomes new students during orientation day and posts photos on their web page ("Step right up to the library Welcome Carnival" (@CookLibraryOFTU, August 26, 2017).

If a reference list entry is required, start with the author of the Facebook page or other social platform, enclose the title of the post within quotation marks followed by the date and the URL.

Reference list:

Chicago Manual of Style. 2015. "Is the world ready for singular they? We thought so back in 1993." Facebook, April 14, 2015,

In-text citation:

(Chicago Manual of Style 2015)

Reference list: 

McPike, Erin. 2011. “RNC Candidates Push for Credibility, Conservatism in GOP.” RealClearPolitics (blog), January 4, 2011.

In-text citation:

(McPike 2011)

Personal Communication

Personal communications including emails, phone calls, and text messages are usually cited directly in the text using an in-text citation.  No reference list entry is required.

In-text citation:

(Dean Deborah A. Nolan, 2017, email to author, August 24, 2017)

Sound Recording

Reference list:


Beethoven, Ludwig van. 1995. Symphony no. 7 "Pastoral." Wiener Philharmoniker conducted by Karl Bohm. Deutsche Grammophon 44543, compact disc. 

In-text citation:

(Beethoven 1995)