APA (7th ed.) Zitazioa

Copeland, M. A. (1952). A Study of moneyflows in the united states. National Bureau of Economic Research.

Chicago Style (17th ed.) Zitazioa

Copeland, Morris A. A Study of Moneyflows in the United States. New York: National Bureau of Economic Research, 1952.

MLA (9th ed.) Zitazioa

Copeland, Morris A. A Study of Moneyflows in the United States. National Bureau of Economic Research, 1952.