Published by the University of Chicago Press, Chicago Style is a writing system that is used by many publishers and academic disciplines in the United States. The Chicago Manual of Style (CMOS) is currently in its 17th edition. Chicago style is sometimes referred to as Turabian style, as Turabian style developed from CMOS and is nearly identical. Turabian does not include information about publishing.
Chicago offers two citation systems: the Notes and Bibliography System and the Author-Date System.
|Notes and Bibliography System||Author-Date System|
|Sources are cited in the text by numbered footnotes or endnotes, noted with superscripts. Sources are listed in a separate bibliography.||
Sources are cited in the text by author's last name and year of publication (usually in parentheses). Each in-text citation corresponds with an entry in a reference list.
This system looks similar to APA.