Heiman stephen E, Diane Sanchez, & Tad Tuleja. (2007). New strategic selling. Kogan page.
Chicago Edition CitationHeiman stephen E, Diane Sanchez, i Tad Tuleja. New Strategic Selling. New delhi: Kogan page, 2007.
Cita MLAHeiman stephen E, et al. New Strategic Selling. Kogan page, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.