Παραπομπή APA

Koopmans, T. C., & The state of economic science. (1957). Three essays on the state of economic science. New York: McGraw-Hill.

Παραπομπή Chicago Style

Koopmans, Tjalling C., and The state of economic science. Three Essays On the State of Economic Science. New York: McGraw-Hill, 1957.

Παραπομπή MLA

Koopmans, Tjalling C., and The state of economic science. Three Essays On the State of Economic Science. New York: McGraw-Hill, 1957.

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