APA (7th ed.) Citation

Gregory, P. R. (1990). Essentials of economics (2nd ed.). Scott, Foresman.

Chicago Style (17th ed.) Citation

Gregory, Paul R. Essentials of Economics. 2nd ed. Glenview, Ill.: Scott, Foresman, 1990.

MLA (9th ed.) Citation

Gregory, Paul R. Essentials of Economics. 2nd ed. Scott, Foresman, 1990.

Warning: These citations may not always be 100% accurate.