Não informado. (1949). Aeronautical Quarterly. Royal Aeronautical Society.
Chicago (17e ed.) BronvermeldingNão informado. Aeronautical Quarterly. London: Royal Aeronautical Society, 1949.
MLA (8e ed.) BronvermeldingNão informado. Aeronautical Quarterly. Royal Aeronautical Society, 1949.
Let op: Deze citaties zijn niet altijd 100% accuraat.