APA (7th ed.) Zitazioa

(1971). Economic principles: Macroeconomic theory and. Macmillan.

Chicago Style (17th ed.) Zitazioa

Economic Principles: Macroeconomic Theory and. New York: Macmillan, 1971.

MLA (9th ed.) Zitazioa

Economic Principles: Macroeconomic Theory and. Macmillan, 1971.