APA استشهاد

Samuelson, P. A. (1973). Readings in economics/7e (7th ed.). Tata.

استشهاد بنمط شيكاغو

Samuelson, Paul A. Readings in Economics/7e. 7th ed. New Delhi: Tata, 1973.

MLA استشهاد

Samuelson, Paul A. Readings in Economics/7e. 7th ed. Tata, 1973.