Cita APA (7a ed.)

Sawyer, W. C., & Sprinkle, R. L. (2009). International economics (2rd ed.). Upper Saddle River.

Cita Chicago Style (17a ed.)

Sawyer, W. Charles, y Richard L. Sprinkle. International Economics. 2rd ed. New Jersy: Upper Saddle River, 2009.

Cita MLA (9a ed.)

Sawyer, W. Charles, y Richard L. Sprinkle. International Economics. 2rd ed. Upper Saddle River, 2009.