APA-Zitierstil (7. Ausg.)

Ruffin, R., & Gregory, P. R. (1993). Principles of microeconomics (5th ed.). HarperCollins College Publishers.

Chicago-Zitierstil (17. Ausg.)

Ruffin, Roy, und Paul R. Gregory. Principles of Microeconomics. 5th ed. New York, NY: HarperCollins College Publishers, 1993.

MLA-Zitierstil (9. Ausg.)

Ruffin, Roy, und Paul R. Gregory. Principles of Microeconomics. 5th ed. HarperCollins College Publishers, 1993.