Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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