APA (7e ed.) Bronvermelding

Hultgren, T. (1965). Cost, prices, and profits, their cyclical relations. National Bureau of Economic Research.

Chicago (17e ed.) Bronvermelding

Hultgren, Thor. Cost, Prices, and Profits, Their Cyclical Relations. New York: National Bureau of Economic Research, 1965.

MLA (9e ed.) Bronvermelding

Hultgren, Thor. Cost, Prices, and Profits, Their Cyclical Relations. National Bureau of Economic Research, 1965.