.Krugman, P. R., & Obstfeld, M. (2006). International economics: Theory and policy (7th ed.). Addison-Wesley.
Чикаго-гийн эшлэл (17 дахь хэвлэлт).Krugman, Paul R., ба Maurice Obstfeld. International Economics: Theory and Policy. 7th ed. Boston, MA: Addison-Wesley, 2006.
MLA -ийн эшлэл (9 дэх хэвлэлт).Krugman, Paul R., ба Maurice Obstfeld. International Economics: Theory and Policy. 7th ed. Addison-Wesley, 2006.