Không rõ. (2001). Promotion and Advertising. Youth PublishingHouse.
Chicago ZitierstilKhông rõ. Promotion and Advertising. Youth PublishingHouse, 2001.
MLA ZitierstilKhông rõ. Promotion and Advertising. Youth PublishingHouse, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.