APA Edition Citation

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

Chicago Edition Citation

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

MLA Edition Citation

Krugman, Paul R., and Robin Wells. Economics. 2nd ed. Worth Publishers, 2009.

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