Dyfyniad APA

Robertson, A. (2009). Marketing (2nd ed.). Trotman & Company, Limited [Imprint] Crimson Publishing, Limited NBN International [Distributor].

Dyfyniad Arddull Chicago

Robertson, Andi. Marketing. 2nd ed. Richmond : Plymouth: Trotman & Company, Limited [Imprint] Crimson Publishing, Limited NBN International [Distributor], 2009.

Dyfyniad MLA

Robertson, Andi. Marketing. 2nd ed. Trotman & Company, Limited [Imprint] Crimson Publishing, Limited NBN International [Distributor], 2009.

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