Cita APA (7th ed.)

Soule, G. (1955). Ideas of the Great Economists (1. Aufl.). Mentor Books.

Cita Chicago (17th ed.)

Soule, George. Ideas of the Great Economists. 1. Aufl. New York: Mentor Books, 1955.

Cita MLA (8th ed.)

Soule, George. Ideas of the Great Economists. 1. Aufl. Mentor Books, 1955.