APA استشهاد

Nordhous, W. D., & Samuelson, P. A. (1995). Economics. Mc Graw-Hill Publishing Company.

استشهاد بنمط شيكاغو

Nordhous, William D., و Paul A. Samuelson. Economics. New York: Mc Graw-Hill Publishing Company, 1995.

MLA استشهاد

Nordhous, William D., و Paul A. Samuelson. Economics. Mc Graw-Hill Publishing Company, 1995.