APA (7th ed.) Zitazioa

Samuelson, P. A. (1989). Macroeconomics: A version of economics. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Samuelson, Paul A. Macroeconomics: A Version of Economics. New York: McGraw-Hill, 1989.

MLA (9th ed.) Zitazioa

Samuelson, Paul A. Macroeconomics: A Version of Economics. McGraw-Hill, 1989.