Chicago Manual of Style Online

Chicago Manual of Style Online
Provides guidance on citing sources, reference formats, grammar and usage, and manuscript production. Both the 15th (2003) and 16th (2010) editions are available online.

Note that there are two formats in Chicago style: notes with bibliography, used for the humanities and some social sciences, and parenthetical citations with reference list, used predominantly by the physical, natural, and social sciences.
Publisher:University of Chicago Press
Alternative:Chicago manual of style | CMOS
Subjects:Arts and Humanities | Business | General and Multi-disciplinary | Science and Technology | Social Sciences | History | Library and Information Science | Marketing