Chapman, R. W. (1973). Marketing today (2nd.). International textbook company.
Chicago Style aipamenaChapman, R. W. Marketing Today. 2nd. Bucks: International textbook company, 1973.
MLA aipamenaChapman, R. W. Marketing Today. 2nd. International textbook company, 1973.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.