Sik, O. (1967). Plan and market under socialism. New York: International Arts and Science Press, Inc.
Dyfyniad Arddull ChicagoSik, Ota. Plan and Market Under Socialism. New York: International Arts and Science Press, Inc, 1967.
Dyfyniad MLASik, Ota. Plan and Market Under Socialism. New York: International Arts and Science Press, Inc, 1967.
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