Cita APA

Krugman, P. R., & Obstfeld, M. (2012). International economics: Theory & policy. [Boston]: Pearson; Addison-Wesley.

Chicago Style Citation

Krugman, Paul R., i Maurice Obstfeld. International Economics: Theory & Policy. [Boston]: Pearson; Addison-Wesley, 2012.

Cita MLA

Krugman, Paul R., i Maurice Obstfeld. International Economics: Theory & Policy. [Boston]: Pearson; Addison-Wesley, 2012.

Atenció: Aquestes cites poden no estar 100% correctes.