Không rõ. (2001). Introduction to Marketing concepts. Youth PublishingHouse.
Chicago Style citaatKhông rõ. Introduction to Marketing Concepts. Youth PublishingHouse, 2001.
MLA citatieKhông rõ. Introduction to Marketing Concepts. Youth PublishingHouse, 2001.
Let op: Deze citaties zijn niet altijd 100% accuraat.