Cateora, P. R., & Graham, J. L. (1999). International Marketing (10th ed.). Irwin Mcgraw-hill.
Chicago Style aipamenaCateora, Philip R., and John L. Graham. International Marketing. 10th ed. London: Irwin Mcgraw-hill, 1999.
MLA aipamenaCateora, Philip R., and John L. Graham. International Marketing. 10th ed. Irwin Mcgraw-hill, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.