Ryan,Damian. (2017). Understanding digital marketing (4.). Kogen page Ltd.
Dyfyniad Arddull ChicagoRyan,Damian. Understanding Digital Marketing. 4. London: Kogen page Ltd, 2017.
Dyfyniad MLARyan,Damian. Understanding Digital Marketing. 4. Kogen page Ltd, 2017.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.