APA-referens (7:e uppl.)

Korey, E. L., & Runge, E. J. (1939). Economics: Principles and problems. Longmans, Green and Co..

Chicago-referens (17:e uppl.)

Korey, Edward L., och Edmond Joseph Runge. Economics: Principles and Problems. New York: Longmans, Green and Co., 1939.

MLA-referens (8:e uppl.)

Korey, Edward L., och Edmond Joseph Runge. Economics: Principles and Problems. Longmans, Green and Co., 1939.