Não informado. (2004). Expedition to South-West Arabia, 1937-1938. Trustees of the British Museum.
Chicago-viite (17. p.)Não informado. Expedition to South-West Arabia, 1937-1938. London: Trustees of the British Museum, 2004.
MLA-viite (8. p.)Não informado. Expedition to South-West Arabia, 1937-1938. Trustees of the British Museum, 2004.
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