APA (7th ed.) Citation

Krugman, P. R., Wells, R., & Graddy, K. J. (2008). Economics / Paul Krugman, Robin Wells, Kathryn Graddy (European ed.). Worth.

Chicago Style (17th ed.) Citation

Krugman, Paul R., Robin Wells, and Kathryn Jo Graddy. Economics / Paul Krugman, Robin Wells, Kathryn Graddy. European ed. New York: Worth, 2008.

MLA (9th ed.) Citation

Krugman, Paul R., et al. Economics / Paul Krugman, Robin Wells, Kathryn Graddy. European ed. Worth, 2008.

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