Walsh. L.S. (1978). International marketing. Macdonald & Evans.
Chicago Style aipamenaWalsh. L.S. International Marketing. Estover: Macdonald & Evans, 1978.
MLA aipamenaWalsh. L.S. International Marketing. Macdonald & Evans, 1978.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.