APA引文

Copeland, M. A. (1952). A study of money flows in the United States. National Bureau of Economic Research.

芝加哥风格引文

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

MLA引文

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