Cita APA (7a ed.)
Pugel, T. A. (2009). International economics (14th ed.). McGraw-Hill.
Cita Chicago Style (17a ed.)
Pugel, Thomas A. International Economics. 14th ed. Boston: McGraw-Hill, 2009.
Cita MLA (9a ed.)
Pugel, Thomas A. International Economics. 14th ed. McGraw-Hill, 2009.
Precaución: Estas citas no son 100% exactas.