APA (7th ed.) Citation

Samuelson, P. A. (1961). Economics: An introductory analysis (5a. ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Samuelson, Paul Anthony. Economics: An Introductory Analysis. 5a. ed. Nueva York: McGraw-Hill, 1961.

MLA (9th ed.) Citation

Samuelson, Paul Anthony. Economics: An Introductory Analysis. 5a. ed. McGraw-Hill, 1961.