Dyfyniad APA
Pugel, T. A., & Lindert, P. H. (2000). International economics (11th ed.). McGraw-Hill.
Dyfyniad Arddull Chicago
Pugel, Thomas A., and Peter H. Lindert. International Economics. 11th ed. Boston: McGraw-Hill, 2000.
Dyfyniad MLA
Pugel, Thomas A., and Peter H. Lindert. International Economics. 11th ed. McGraw-Hill, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.