APA-referens (7:e uppl.)

Turner, J. R. (1919). Introduction to economics. Scribner's.

Chicago-referens (17:e uppl.)

Turner, John Roscoe. Introduction to Economics. New York: Scribner's, 1919.

MLA-referens (9:e uppl.)

Turner, John Roscoe. Introduction to Economics. Scribner's, 1919.