APA (7th ed.) Citation

Krugman, P. R., & Obstfeld, M. (2003). International economics: Theory and policy (6. ed.). Harper Collins College Publ.

Chicago Style (17th ed.) Citation

Krugman, Paul R., and Maurice Obstfeld. International Economics: Theory and Policy. 6. ed. New York, NY: Harper Collins College Publ, 2003.

MLA (9th ed.) Citation

Krugman, Paul R., and Maurice Obstfeld. International Economics: Theory and Policy. 6. ed. Harper Collins College Publ, 2003.