Cita APA (7a ed.)

Krugman,Paul R., & Obstfeld, M. (2009). International economics: Theory and policy (8th ed.). Pearson Addison-Wesley.

Cita Chicago Style (17a ed.)

Krugman,Paul R., y Maurice Obstfeld. International Economics: Theory and Policy. 8th ed. Boston: Pearson Addison-Wesley, 2009.

Cita MLA (9a ed.)

Krugman,Paul R., y Maurice Obstfeld. International Economics: Theory and Policy. 8th ed. Pearson Addison-Wesley, 2009.