APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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