APA (7e ed.) Bronvermelding

Não informado. (1969). Airline management and marketing including american aviation. Ziff-Davis Aviation Division.

Chicago (17e ed.) Bronvermelding

Não informado. Airline Management and Marketing Including American Aviation. Washington: Ziff-Davis Aviation Division, 1969.

MLA (8e ed.) Bronvermelding

Não informado. Airline Management and Marketing Including American Aviation. Ziff-Davis Aviation Division, 1969.

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