APA

Whittaker E., . (1940). A history of economic ideas. New York: Longmans, Green and Co.

Chicago

Whittaker Edmund, . 1940. A history of economic ideas. New York: Longmans, Green and Co.

Harvard

Whittaker E., . (1940). A history of economic ideas. New York: Longmans, Green and Co.

MLA

Whittaker Edmund, . A history of economic ideas. New York: Longmans, Green and Co. 1940.