Dyfyniad APA

Schiffman, S. (2009). Sales presentation techniques; That reality work.

Dyfyniad Arddull Chicago

Schiffman, Stephan. Sales Presentation Techniques; That Reality Work. Adams Media Corporation, Avon, 2009.

Dyfyniad MLA

Schiffman, Stephan. Sales Presentation Techniques; That Reality Work. 2009.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.