Dyfyniad APA

Robert,E.Lefton, & Victor,R.Buzzota. (2005). Dimensional selling (1.). McGraw-hill.

Dyfyniad Arddull Chicago

Robert,E.Lefton, and Victor,R.Buzzota. Dimensional Selling. 1. chicago: McGraw-hill, 2005.

Dyfyniad MLA

Robert,E.Lefton, and Victor,R.Buzzota. Dimensional Selling. 1. McGraw-hill, 2005.

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