APA Citation

Krugman, & Obstfeld. (2009). International economics: Theory and policy (8th ed.). Boston, MA: Addison Wesley.

Chicago Style Citation

Krugman, and Obstfeld. International Economics: Theory and Policy. 8th ed. Boston, MA: Addison Wesley, 2009.

MLA Citation

Krugman, and Obstfeld. International Economics: Theory and Policy. 8th ed. Boston, MA: Addison Wesley, 2009.

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