APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (8. izdanje)

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