Tohutoro APA (7th ed.)

Main, R. S. (1981). Elements of microeconomics (2nd ed.). West Pub. Co..

Tohutoru Kātū Chicago (17th ed.)

Main, Robert S. Elements of Microeconomics. 2nd ed. St. Paul: West Pub. Co., 1981.

Tohutoro MLA (9th ed.)

Main, Robert S. Elements of Microeconomics. 2nd ed. West Pub. Co., 1981.