Cita APA (7th ed.)
Smith, S., & Schultz, D. E. (2005). How to sell more stuff: Promotional marketing that really works. Dearborn Trade Pub..
Cita Chicago (17th ed.)
Smith, Steve, i Don E. Schultz. How to Sell More Stuff: Promotional Marketing That Really Works. Chicago: Dearborn Trade Pub., 2005.
Cita MLA (9th ed.)
Smith, Steve, i Don E. Schultz. How to Sell More Stuff: Promotional Marketing That Really Works. Dearborn Trade Pub., 2005.
Atenció: Aquestes cites poden no estar 100% correctes.