APA (7th ed.) Citation

Samuelson, P. A. (1973). Economics (9a. ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Samuelson, Paul Anthony. Economics. 9a. ed. Nueva York: McGraw-Hill, 1973.

MLA (9th ed.) Citation

Samuelson, Paul Anthony. Economics. 9a. ed. McGraw-Hill, 1973.