APA استشهاد

Samuelson, P. A., & Nordhaus, W. D. (2001). Economics (17th ed.). Tata McGraw-Hill.

استشهاد بنمط شيكاغو

Samuelson, Paul A., و William D. Nordhaus. Economics. 17th ed. New Delhi: Tata McGraw-Hill, 2001.

MLA استشهاد

Samuelson, Paul A., و William D. Nordhaus. Economics. 17th ed. Tata McGraw-Hill, 2001.