APA (7th ed.) Citation

Whittaker, E. (1940). A history of economic ideas. Longmans, Green.

Chicago Style (17th ed.) Citation

Whittaker, Edmund. A History of Economic Ideas. New York: Longmans, Green, 1940.

MLA (9th ed.) Citation

Whittaker, Edmund. A History of Economic Ideas. Longmans, Green, 1940.