Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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