APA (7th ed.) Citation

Samuelson, P. A. (1961). Economics, an introductory analysis (5th ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Samuelson, Paul Anthony. Economics, an Introductory Analysis. 5th ed. New York: McGraw-Hill, 1961.

MLA (9th ed.) Citation

Samuelson, Paul Anthony. Economics, an Introductory Analysis. 5th ed. McGraw-Hill, 1961.