Παραπομπή APA
Krugman, P. R., & Obstfeld, M. (2000). International economics: Theory and policy (5th ed.). Reading Mass.: Addison-Wesley.
Παραπομπή Chicago StyleKrugman, Paul R., and Maurice Obstfeld. International Economics: Theory and Policy. 5th ed. Reading Mass.: Addison-Wesley, 2000.
Παραπομπή MLAKrugman, Paul R., and Maurice Obstfeld. International Economics: Theory and Policy. 5th ed. Reading Mass.: Addison-Wesley, 2000.
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