APA استشهاد

Haveman, R. H., & Knopt, K. A. (1978). The Market System, an Introduction to Microeconomics (3rd ed.). Wiley Eastern.

استشهاد بنمط شيكاغو

Haveman, Robert H., و Kenyon A. Knopt. The Market System, an Introduction to Microeconomics. 3rd ed. New York: Wiley Eastern, 1978.

MLA استشهاد

Haveman, Robert H., و Kenyon A. Knopt. The Market System, an Introduction to Microeconomics. 3rd ed. Wiley Eastern, 1978.