Παραπομπή APA
Clark, J. M. (1949). Strategic factors in business cycles. New York: National Bureau of economic Research, Committee on recent economic changes.
Παραπομπή Chicago StyleClark, John Maurice. Strategic Factors in Business Cycles. New York: National Bureau of economic Research, Committee on recent economic changes, 1949.
Παραπομπή MLAClark, John Maurice. Strategic Factors in Business Cycles. New York: National Bureau of economic Research, Committee on recent economic changes, 1949.
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