Krugman, P. R., & Obstfeld, M. (2003). International economics: Theory and policy (6th ed.). Addison-Wesley.
Chicago Style (17. basım) AtıfKrugman, Paul R., ve Maurice Obstfeld. International Economics: Theory and Policy. 6th ed. Boston: Addison-Wesley, 2003.
MLA (9th ed.) AtıfKrugman, Paul R., ve Maurice Obstfeld. International Economics: Theory and Policy. 6th ed. Addison-Wesley, 2003.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..