APA aipamena

Samuelson, P. A. (1951). Economics, an introductory analysis (2nd ed.). McGraw-Hill.

Chicago Style aipamena

Samuelson, Paul Anthony. Economics, an Introductory Analysis. 2nd ed. New York: McGraw-Hill, 1951.

MLA aipamena

Samuelson, Paul Anthony. Economics, an Introductory Analysis. 2nd ed. McGraw-Hill, 1951.