Não informado. (2004). Expedition to South-West Arabia, 1937-1938. Trustees of the British Museum.
Chicago (17e ed.) BronvermeldingNão informado. Expedition to South-West Arabia, 1937-1938. London: Trustees of the British Museum, 2004.
MLA (8e ed.) BronvermeldingNão informado. Expedition to South-West Arabia, 1937-1938. Trustees of the British Museum, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.