Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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