APA Style

Krugman, P, R., Obstfeld, M. (2000). International Economics: Theory and Policy 5 - International Ed. (5 - International Edition). Canada: Addison-Wesley.

MLA Style

Krugman, Paul, R., Obstfeld, Maurice. "International Economics: Theory and Policy 5 - International Ed.". 5 - International Edition Canada: Addison-Wesley, 2000. Manajemen.