Dyfyniad APA

Stern, L. W. (1993). Marketing Channels (4th.). Prentice- hall of India.

Dyfyniad Arddull Chicago

Stern, Louis W. Marketing Channels. 4th. delhi: Prentice- hall of India, 1993.

Dyfyniad MLA

Stern, Louis W. Marketing Channels. 4th. Prentice- hall of India, 1993.

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