Chicago Style Author-Date System
- What is Chicago Style Author-Date System?
- Citing Different Types of Sources using Author-Date System
Some professors will require you to use an author-date system in the Chicago Style. Rather than footnotes or endnotes, you use a parenthetical citation to cite your evidence. Do not use both systems in the same paper.
A parenthetical citation includes the author name and year of publication. Note that there is no punctuation between the name and date. A page number or range is included to reference a particular section of the text; in this case, a comma separates the date and page number.
(Nelson and Reidstra 2010, 87)
Reference or Works Cited list
All works cited in the paper must be listed alphabetically in a list titled “References” or “Works Cited.” This list is double-spaced and entries are formatted with a hanging indent.
(Dunaway 2005) or (Dunaway 2005, 42)
Author's Name: Last Name First. Year of Publication. Title of Book. City Where Published: Publisher.
Dunaway, Finis. 2005. Natural Visions: The Power of Images in American Environmental Reform. Chicago: University of Chicago Press.
If the book has two or three authors or editors, list all names in the order that they appear on the title page. Separate the names with commas and write "and" before the last name.
(Sadker and Sadker 1995)
Authors' Names: Last Name First for First Author Only. Year of Publication. Title of Book. City Where Published: Publisher.
Sadker, Myra, and David Sadker. 1995. Failing at Fairness: How America's Schools Cheat Girls. New York: Touchstone.
In the citation, list only the first author followed by "et al." In the reference list, you should list all of the authors.
(Boyer et al. 2007, 18)
Authors' names: Last Name First for First Author Only. Year of Publication. Title of Book. City Where Published: Publisher.
Boyer, Paul, Clifford Clark, Joseph Kett, Neil Salisbury, and Harvard Sitkoff. 2005. The Enduring Vision: A History of the American People. New York: Houghton Mifflin Harcourt.
When citing a chapter or article in a book that contains works by many different authors, list the author and title of the chapter or article that you are using first. The editor/editors of the book as a whole are listed after the title of the book.
(Andriewsky 2003, 255)
Author's Name: Last Name First. Year of Publication. "Article or Chapter Title." Title of Book, edited by Editor's Names. Page Range. City Where Published: Publisher.
Andriewsky, Olga. 2003. "The Paradoxes of Reform: Higher Education in Post Soviet Ukraine." In Society in Transition: Social Change Ukraine in Western Perspectives, edited by Wsevolod Isajiw, 239-268. Toronto: Canadian Scholars' Press.
Where available, include a DOI for an article you access online. If a DOI is not available, include a URL.
(Shuger 2012, 142).
Author's Name: Last Name First. Year of Publication. "Article Title." Title of Journal Volume and Issue Number: Page Range. DOI Information (or URL).
Example with DOI
Shuger, Debora. 2012. "Milton's Religion: The Early Years." Milton Quarterly no. 3: 137-153. doi:10.1111/milt.12000.
Example with URL
Sangster, Joan. 2008."‘Queen of the Picket Line:’ Beauty Contests in the Post–World War II Canadian Labor Movement, 1945–1970,” Labor 5, no.4: 83-106. http://labor.dukejournals.org/cgi/content/abstract/5/4/83.
Include the date that you accessed the materials if it is a time sensitive issue or you are advised to do so by your professor.
(Government of Ontario 2014)
Author/Agency. Date of Publication. “Title of Page.” Title of site. Date material modified if required. URL.
Government of Ontario. 2014. “About Ontario.” Ontario. Last modified July 8. http://www.ontario.ca/government/about-ontario#section-1.