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Chicago Citation Style

Basic information and examples for creating footnotes and a bibliography in Chicago style.


  • Give the author or editor with last name first, followed by a period.
    • Potter, Harry. (or) Potter, Harry, ed.
  • If there are two authors, give both. Invert only the first one; separate them with comma and "and".
    • Potter, Harry, and Ronald Weasley.
  • If there are three to ten authors or editors, give them all.
    • Separate them with commas.
    • Invert only the first name.
    • Use "and" (not &) before the last name.
    • Potter, Harry, Ronald Weasley, and Hermione Granger.
  • If there are 11 or more authors or editors, give the first seven and add et al. (no period after et, no italics)
    • Potter, Harry, Ronald Weasley, Hermione Granger, Ginny Weasley, Neville Longbottom, Luna Lovegood, Padma Patel, et al.
  • If there is no personal author or editor, but there is clearly a corporate author (an organization or company), give the corporate author.
    • Goodyear Tire and Rubber Company.
    • National Aeronautics and Space Administration.
    • University of Texas at El Paso. 
  • If there is no author, put the title first in the citation.

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