Cita APA (7th ed.)

Krugman, P. R., & Wells, R. (2009). Microeconomics (2nd ed.). Worth Publishers.

Cita Chicago (17th ed.)

Krugman, Paul R., i Robin Wells. Microeconomics. 2nd ed. New York, NY: Worth Publishers, 2009.

Cita MLA (8th ed.)

Krugman, Paul R., i Robin Wells. Microeconomics. 2nd ed. Worth Publishers, 2009.