Koopmans, T. C. (1957). Three essays on the state of economic science. New York: McGraw-Hill.
Παραπομπή Chicago StyleKoopmans, Tjalling C. Three Essays On the State of Economic Science. New York: McGraw-Hill, 1957.
Παραπομπή MLAKoopmans, Tjalling C. Three Essays On the State of Economic Science. New York: McGraw-Hill, 1957.
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