Dyfyniad APA

Sales & Marketing Management New York. American Society of Business.

Dyfyniad Arddull Chicago

Sales & Marketing Management New York. American Society of Business.

Dyfyniad MLA

Sales & Marketing Management New York. American Society of Business.

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