Chicago Manual of Style

Using Author-Date Style

Author-Date  style is a more concise format. It is usually used by scholars in the sciences and social sciences.

Provide brief parenthetical citations within the paper (usually the author's last name and publication date).
List full citations at the end of the work in a "Reference List."

Author - Date Style for Book Citation

Reference List Entries (in alphabetical order)

Grazer, Brian, and Charles Fishman. 2015. A Curious Mind: The Secret to a Bigger Life. New York: Simon & Schuster.

Smith, Zadie. 2016. Swing Time. New York: Penguin Press.

In-text Citations

(Grazer and Fishman 2015, 12)

(Smith 2016, 315–160)

For more examples, see 15.40–45 in The Chicago Manual of Style