APA (7th ed.) Citation

Samuelson, P. A. (1948). Economics, an introductory analysis. McGraw-Hill Book Co..

Chicago Style (17th ed.) Citation

Samuelson, Paul A. Economics, an Introductory Analysis. New York: McGraw-Hill Book Co., 1948.

MLA (9th ed.) Citation

Samuelson, Paul A. Economics, an Introductory Analysis. McGraw-Hill Book Co., 1948.