Walsh, L. S. (1981). International marketing/2e. Macdonald and evans.
Chicago Style aipamenaWalsh, L. S. International Marketing/2e. Estover: Macdonald and evans, 1981.
MLA aipamenaWalsh, L. S. International Marketing/2e. Macdonald and evans, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.