APA-Zitierstil (7. Ausg.)

Schiffman, S. (2007). Sales presentation techniques (that really work!). Adams Business.

Chicago-Zitierstil (17. Ausg.)

Schiffman, Stephan. Sales Presentation Techniques (that Really Work!). Avon, Mass: Adams Business, 2007.

MLA-Zitierstil (9. Ausg.)

Schiffman, Stephan. Sales Presentation Techniques (that Really Work!). Adams Business, 2007.