Stevens, H. K. (2007). Achieve sales excellence: The 7 customer rules for becoming the new sales professioonal.
Citación estilo ChicagoStevens, Howaed; Kinni. Achieve Sales Excellence: The 7 Customer Rules for Becoming the New Sales Professioonal. Platinum Press, Avon, 2007.
Cita MLAStevens, Howaed; Kinni. Achieve Sales Excellence: The 7 Customer Rules for Becoming the New Sales Professioonal. 2007.
Warning: These citations may not always be 100% accurate.