APA (7e ed.) Bronvermelding

Não informado. (1946). ICAO Bulletin. International Civil Aviation Organization.

Chicago (17e ed.) Bronvermelding

Não informado. ICAO Bulletin. Montreal, Canada: International Civil Aviation Organization, 1946.

MLA (8e ed.) Bronvermelding

Não informado. ICAO Bulletin. International Civil Aviation Organization, 1946.

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