APA (7th ed.) Citation

Soule, G. H. (1952). Ideas of the great economists. A Mentor Book.

Chicago Style (17th ed.) Citation

Soule, George Henry. Ideas of the Great Economists. New York: A Mentor Book, 1952.

MLA (9th ed.) Citation

Soule, George Henry. Ideas of the Great Economists. A Mentor Book, 1952.