Não informado. (2004). Expedition to South-West Arabia, 1937-1938. Trustees of the British Museum.
Chicago-Zitierstil (17. Ausg.)Não informado. Expedition to South-West Arabia, 1937-1938. London: Trustees of the British Museum, 2004.
MLA-Zitierstil (8. Ausg.)Não informado. Expedition to South-West Arabia, 1937-1938. Trustees of the British Museum, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.