Sawyer, . W. C., & Sprinkle, R. L. (2006). International economics (Second edition.). Pearson Prentice Hall.
Cita Chicago Style (17a ed.)Sawyer, W. Charles, y Richard L. Sprinkle. International Economics. Second edition. Upper Saddle River, N.J: Pearson Prentice Hall, 2006.
Cita MLA (9a ed.)Sawyer, W. Charles, y Richard L. Sprinkle. International Economics. Second edition. Pearson Prentice Hall, 2006.
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