APA (7e ed.) Bronvermelding

Não informado. (1983). Business Marketing. Crain Communications.

Chicago (17e ed.) Bronvermelding

Não informado. Business Marketing. Chicago, Ill: Crain Communications, 1983.

MLA (8e ed.) Bronvermelding

Não informado. Business Marketing. Crain Communications, 1983.

Let op: Deze citaties zijn niet altijd 100% accuraat.