Adams, T. (2004). The secrets of successful selling. Jaico.
Cita Chicago (17th ed.)Adams, Tony. The Secrets of Successful Selling. Mumbai: Jaico, 2004.
Cita MLA (9th ed.)Adams, Tony. The Secrets of Successful Selling. Jaico, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.