APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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