APA (7th ed.) Zitazioa

Samuelson, P. A. (1998). Economics (16th ed.). McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Samuelson, Paul A. Economics. 16th ed. Boston: McGraw-Hill, 1998.

MLA (9th ed.) Zitazioa

Samuelson, Paul A. Economics. 16th ed. McGraw-Hill, 1998.