APA (7th ed.) Zitazioa

Samuelson, P. A., & Samuelson, W. (2001). Economics (17th ed.). McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Samuelson, Paul A., eta William Samuelson. Economics. 17th ed. New York: McGraw-Hill, 2001.

MLA (9th ed.) Zitazioa

Samuelson, Paul A., eta William Samuelson. Economics. 17th ed. McGraw-Hill, 2001.