Used by many disciplines. Always use the style required by your instructor.
The following guides provide examples of how to write citations and notes in Chicago format for specific sources including books, periodical articles, and Web pages.
Examples of the main citation and footnote needs from the official Chicago Manual of Style website.
Kate L. Turabian's guide to the Chicago Manual of Style, available in Milne Library's Reference Collection (REF LB 2369 T8 2007).
All-round best guide to formatting papers and citations in Chicago Manual of Style. Also includes many tutorials on how to research and write papers.