Chicago style is also referred to as Turabian style, which is the abbreviated student edition. There are two different forms of Chicago style: Notes style and Author-Date style. The primary difference between these two forms are not the content of the citation but the location of the date in the citation. For Chicago Author-Date style, primarily used for physical, life, and social sciences, the year of the date is located immediately after the first element, usually the author's name. For Chicago Notes style, primarily used for history, the location of the date varies by resource but is usually not immediately after the author. Chicago style includes footnotes and a bibliography for Notes style or parenthetical citations and a reference list for Author-Date style. 

Chicago uses footnotes for Notes style or parenthetical citations for Author-Date style as its form of in-text citation. For footnotes, they are designated using a superscript number, beginning with 1 and continuing consecutively through the paper without repetition. The superscript number corresponds to a citation with a full-sized number at the bottom of the same page. These footnote citations should correspond to a more detailed citation in the bibliography. For parenthetical citations, provide a citation before the period directly following the information you are citing. These require the author's last name, year of publication, and page number.

Chicago uses a bibliography in Notes Style or a reference list in Author-Date style for its complete list of sources referenced. The bibliography or reference list is an alphabetized list of sources following the end of the book or paper. This list should be titled "Bibliography" or "References" and be alphabetized by the first item in the citation, which, in most cases, is the author's last name. For formatting this page, two blank lines should be between the title and the first entry, and only one blank line between the remaining entries. Each reference from this list must be cited in your paper and vice versa.

Books

Notes: Author Last Name, Author First Name. Title. Publisher location: Publisher Name, year of publication.

Author-Date: Author Last Name, Author First Name. Year of publication. Title. Publisher location: Publisher Name.

Print Articles

Notes: Author Last Name, Author First Name, & Author First Name Author Last Name. "Article Title". Periodical Title volume number, issue number (year): pages.

Author-Date: Author Last Name, Author First Name, & Author First Name Author Last Name. Year. "Article Title". Periodical Title volume number, issue number: pages.

Electronic Articles

Notes: Author Last Name, Author First Name, & Author First Name Author Last Name. "Article Title". Periodical Title volume number, issue number (year): pages. Accessed access date, doi or static url.

Author-Date: Author Last Name, Author First Name, & Author First Name Author Last Name. Year. "Article Title". Periodical Title volume number, issue number: pages. Accessed access date, doi or static url.

Physical Images/Artwork

Notes: Artist Last Name, Artist First Initial. Artwork Title. Date. Medium, dimensions (converted dimensions). Host Institution Name, Location. 

Author-Date: Artist Last Name, Artist First Initial. Date. Artwork Title. Medium, dimensions (converted dimensions). Host Institution Name, Location. 

Electronic Images/Artwork

Notes: Artist Last Name, Artist First Initial. Artwork Title. Date. Medium, dimensions (converted dimensions). Host Institution Name, Location. Doi or static url of image.

Author-Date: Artist Last Name, Artist First Initial. Date. Artwork Title. Medium, dimensions (converted dimensions). Host Institution Name, Location. Doi or static url of image.

Book:

Footnote: Simone Beck, Louis Bertholle, and Julia Child, Mastering the art of French cooking (New York : Knopf, 1961-70), 10.

Parenthetical: (Beck 1961-70, 10)

Journal article:

Footnote: David Nussbaum, "In Julia Child's Kitchen, October 5 1998", Gastronomica 5, no. 3 (2005): 29-38, accessed April 28, 2020, doi: 10.1525/gfc.2005.5.3.29.

Parenthetical: (Nussbaum 2005, 29-38)

Image:

Footnote: Paul Child, Julia Child at the White House, 1967, photograph, 10 x 8 in. (25.4 x 20.32 cm), Schlesinger Library on the History of Women in America, Radcliffe Institute.

Parenthetical: (Child 1967)

Archival material:

Notes: Child, Julia. Journal, 1974. 1974. MC 644, item 4. Papers of Julia Child, 1925-1993. Schlesinger Library on the History of Women in America, Radcliffe Institute,  Cambridge, Mass. https://id.lib.harvard.edu/ead/c/sch00222c00006/catalog.

Author-Date: Child, Julia. 1974. Journal, 1974. MC 644, item 4. Papers of Julia Child, 1925-1993. Schlesinger Library on the History of Women in America, Radcliffe Institute,  Cambridge, Mass. https://id.lib.harvard.edu/ead/c/sch00222c00006/catalog.

Image:

Notes: Child, Paul. Julia Child at the White House. 1967. Photograph, 10 x 8 in. (25.4 x 20.32 cm). Schlesinger Library on the History of Women in America, Radcliffe Institute,  Cambridge, Mass. https://id.lib.harvard.edu/images/olvwork539731/urn-3:RAD.SCHL:4510469/catalog.

Author-Date: Child, Paul.1967. Julia Child at the White House. Photograph, 10 x 8 in. (25.4 x 20.32 cm). Schlesinger Library on the History of Women in America, Radcliffe Institute,  Cambridge, Mass. https://id.lib.harvard.edu/images/olvwork539731/urn-3:RAD.SCHL:4510469/catalog.

Book:

Notes: Beck, Simone, Louise Bertholle, and Julia Child. Mastering the art of French cooking. New York: Knopf, 1961-70. 

Author-Date: Beck, Simone, Louise Bertholle, and Julia Child. 1961-70. Mastering the art of French cooking. New York: Knopf. 

Journal article:

Notes: Nussbaum, David. "In Julia Child's Kitchen, October 5 1998." Gastronomica 5, no. 3 (2005): 29-38. JSTOR, doi: 10.1525/gfc.2005.5.3.29.

Author-Date: Nussbaum, David. 2005. "In Julia Child's Kitchen, October 5 1998." Gastronomica, vol. 5, no. 3., pp. 29-38. Accessed April 28, 2020, doi: 10.1525/gfc.2005.5.3.29.