Sawyer, W. C., & Sprinkle, R. L. (2009). International economics (2rd ed.). Upper Saddle River.
Citação norma ChicagoSawyer, W. Charles, and Richard L. Sprinkle. International Economics. 2rd ed. New Jersy: Upper Saddle River, 2009.
Citação norma MLASawyer, W. Charles, and Richard L. Sprinkle. International Economics. 2rd ed. Upper Saddle River, 2009.