Webster, F. E. (1974). Marketing for managers. Harpet& Row publishers.
Chicago Style aipamenaWebster, Federick E. Marketing for Managers. London: Harpet& Row publishers, 1974.
MLA aipamenaWebster, Federick E. Marketing for Managers. Harpet& Row publishers, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.