Hultgren, T. (1965). Cost, prices, and profits, their cyclical relations. National Bureau of Economic Research.
Chicagoスタイル(17版)引用形式Hultgren, Thor. Cost, Prices, and Profits, Their Cyclical Relations. New York: National Bureau of Economic Research, 1965.
MLA(9版)引用形式Hultgren, Thor. Cost, Prices, and Profits, Their Cyclical Relations. National Bureau of Economic Research, 1965.
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