APA (7e ed.) Bronvermelding

Não informado. (1937). American aviation. American Aviation Publications.

Chicago (17e ed.) Bronvermelding

Não informado. American Aviation. Washington: American Aviation Publications, 1937.

MLA (8e ed.) Bronvermelding

Não informado. American Aviation. American Aviation Publications, 1937.

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