Chicago Style citations fall into two categories:
The Humanities system includes notes followed by a bibliography. The Humanities system is used for subjects such as literature, arts and history.
The Author-Date system includes an in-text citation followed by a References page(s). The author-date system is used for subjects such as physical, natural and social sciences.
The Chicago Manual of Style provides standard guidelines that authors must follow when citing sources, reporting data, or formatting a manuscript.
Copies of the Chicago Manual of Style are available at the Reference desk and older editions are available in the Circulating Collection.
Chicago Style Guide
Detailed examples of the humanities and author-date system.