Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

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