Dyfyniad APA

(1996). Successful Selling / Bob Kimball. American Marketing Association.

Dyfyniad Arddull Chicago

Successful Selling / Bob Kimball. American Marketing Association, 1996.

Dyfyniad MLA

Successful Selling / Bob Kimball. American Marketing Association, 1996.

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