Não informado. (1953). Northeast Africa series. American University Field Staff.
Chicago (17e ed.) BronvermeldingNão informado. Northeast Africa Series. New York: American University Field Staff, 1953.
MLA (8e ed.) BronvermeldingNão informado. Northeast Africa Series. American University Field Staff, 1953.
Let op: Deze citaties zijn niet altijd 100% accuraat.