The Chicago Manual of Style (16th ed.) is CST's default/standard style manual, and specifically, the Notes/Bibliography format of the Chicago Manual of Style, NOT the Author/Date format.
CST faculty, staff, and students can access CST's subscription to the online Chicago Manual of Style. For a short summation see the Chicago-Style Citation Quick Guide. The book links below may be useful for those who want a print reference copy. Turabian is essentially an abridged, print guide to the Chicago Manual of Style.
The Purdue Online Writing Lab (OWL) provides excellent guidance, including a general introduction, a broad overview of the format, a sample essay, as well as numerous formatting examples for books, periodicals, and web sources.