APA (7th ed.) Zitazioa

Samuelson, P. A. (1980). Economics. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Samuelson, Paul A. Economics. New York: McGraw-Hill, 1980.

MLA (9th ed.) Zitazioa

Samuelson, Paul A. Economics. McGraw-Hill, 1980.