Cita APA

Krugman, P. R., & Obstfeld, M. (2018). International economics: Theory and policy. Boston: Pearson.

Chicago Style Citation

Krugman, Paul R., i Maurice Obstfeld. International Economics: Theory and Policy. Boston: Pearson, 2018.

Cita MLA

Krugman, Paul R., i Maurice Obstfeld. International Economics: Theory and Policy. Boston: Pearson, 2018.

Atenció: Aquestes cites poden no estar 100% correctes.