APA aipamena

Hamberg D. (1951). Business Cycle (1951.). The Macmillan Company.

Chicago Style aipamena

Hamberg D. Business Cycle. 1951. New York: The Macmillan Company, 1951.

MLA aipamena

Hamberg D. Business Cycle. 1951. The Macmillan Company, 1951.