APA (7th ed.) Zitazioa

.Appleyard, D. R., .Field, A. J., & .Cobb, S. L. (2008). International economics (6th ed.). McGraw-Hill Irwin.

Chicago Style (17th ed.) Zitazioa

.Appleyard, Dennis R., Alfred J. .Field, eta Steven L. .Cobb. International Economics. 6th ed. Boston: McGraw-Hill Irwin, 2008.

MLA (9th ed.) Zitazioa

.Appleyard, Dennis R., et al. International Economics. 6th ed. McGraw-Hill Irwin, 2008.