Chicago is a documentation style that has been published by the Chicago University Press since 1906. This citation style incorporates rules of grammar and punctuation common in American English.
Typically, Chicago style presents two basic documentation systems:
(1) notes and bibliography and (2) author-date
Choosing between the two often depends on subject matter and the nature of sources cited, as each system is favored by different groups of scholars.
The Chicago manual of style / [The University of Chicago Press]|
Material Type |
Notes/Bibliography Style |
|
A book in print |
Note Style: 1. Michael Pollan, The Omnivore's Dilemma: A Natural History of Four Meals (New York: Penguin, 2006), 99–100. Duplicate Note: 2. Pollan, Omnivore's Dilemma, 3. Bibliography: Pollan, Michael. The Omnivore's Dilemma: A Natural History of Four Meals. New York: Penguin, 2006. |
|
An article in a print journal |
Note Style: 1. Joshua I. Weinstein, "The Market in Plato’s Republic," Classical Philology 104 (2009): 440. Duplicate Note: 2. Weinstein, "Plato’s Republic," 452–53. Bibliography: Weinstein, Joshua I. "The Market in Plato’s Republic." Classical Philology 104 (2009): 439–58. |
|
An article in an electronic journal |
Note Style: 1. Gueorgi Kossinets and Duncan J. Watts, “Origins of Homophily in an Evolving Social Network,” American Journal of Sociology 115 (2009): 411, accessed February 28, 2010, doi:10.1086/599247. Duplicate Note: Kossinets and Watts, “Origins of Homophily,” 439. Bibliography: Kossinets, Gueorgi, and Duncan J. Watts. “Origins of Homophily in an Evolving Social Network.” American Journal of Sociology 115 (2009): 405–50. Accessed February 28, 2010. doi:10.1086/599247. |
|
A website |
Note Style: 1.“Google Privacy Policy,” last modified March 11, 2009, http://www.google.com/intl/en/privacypolicy.html. Duplicate Note: “Google Privacy Policy.” Bibliography: Google. “Google Privacy Policy.” Last modified March 11, 2009. http://www.google.com/intl/en/privacypolicy.html. |
|
Author/Date Style |
In-text Citation |
Bibliography |
|
A book |
(Pollan 2006, 99–100) |
Pollan, Michael. 2006. The Omnivore’s Dilemma: A Natural History of Four Meals. New York: Penguin. |
|
An article in a print journal |
(Weinstein 2009, 440) |
Weinstein, Joshua I. 2009. “The Market in Plato’s Republic.” Classical Philology 104:439–58. |
|
An article in an electronic journal |
(Kossinets and Watts 2009, 411) |
Kossinets, Gueorgi, and Duncan J. Watts. 2009. “Origins of Homophily in an Evolving Social Network.” American Journal of Sociology 115:405–50. Accessed February 28, 2010. doi:10.1086/599247. |
|
A website |
(Google 2009) |
Google. 2009. “Google Privacy Policy.” Last modified March 11. http://www.google.com/intl/en/privacypolicy.html. |
(Source: Official Chicago Manual website)
