APA (7th ed.) Citation

Ruffin, R., & Gregory, P. R. (1983). Principles of microeconomics. Scott, Foresman.

Chicago Style (17th ed.) Citation

Ruffin, Roy, and Paul R. Gregory. Principles of Microeconomics. Glenview, Ill.: Scott, Foresman, 1983.

MLA (9th ed.) Citation

Ruffin, Roy, and Paul R. Gregory. Principles of Microeconomics. Scott, Foresman, 1983.

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