Krugman, P. R., & Obstfeld, M. (2009). International economics: Theory and policy (8th International edition.). Pearson Education.
Chicago Style (17. basım) AtıfKrugman, Paul R., ve Maurice Obstfeld. International Economics: Theory and Policy. 8th International edition. London: Pearson Education, 2009.
MLA (9th ed.) AtıfKrugman, Paul R., ve Maurice Obstfeld. International Economics: Theory and Policy. 8th International edition. Pearson Education, 2009.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..