Adams, T. (2004). The secrets of successful selling. Jaico.
Chicago Style aipamenaAdams, Tony. The Secrets of Successful Selling. Mumbai: Jaico, 2004.
MLA aipamenaAdams, Tony. The Secrets of Successful Selling. Jaico, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.