Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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