The Chicago Manual of Style includes 2 documentation styles: the Notes-Bibliography System (NB), used by those in literature, history, and the arts, and the Author-Date System, which is similar in content, slightly different in form, and preferred in the social sciences.
In addition to consulting The Chicago Manual of Style (16th ed.) for more information, students may also find it useful to consult Kate L. Turabian's Manual for Writers of Research Papers, Theses, and Dissertations (8th ed.). Often called "Turabian" style, it resembles the two patterns of documentation but includes alterations geared to papers written by students.
Guide on Chicago Style from Long Island University