Dunn, R. M., & Ingram, J. C. (1996). International economics (4th ed.). New York: John Wiley and Sons.
Trích dẫn kiểu ChicagoDunn, Robert M., và James C. Ingram. International Economics. 4th ed. New York: John Wiley and Sons, 1996.
Deismireacht MLADunn, Robert M., và James C. Ingram. International Economics. 4th ed. New York: John Wiley and Sons, 1996.
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