The South-Western Desert Survey Expedition 1930-1931:
P. A. Clayton
The South-Western Desert Survey Expedition 1930-1931: Extrait du ''Bulletin de la Societe Royale de Geographie d'Egypte'', tome XIX, fasc. 2 - Cairo: Imprimé Schindler, 1936 - p. 241-265, 24 cm
Offprint--Egypt--Geography--Western Desert
The South-Western Desert Survey Expedition 1930-1931: Extrait du ''Bulletin de la Societe Royale de Geographie d'Egypte'', tome XIX, fasc. 2 - Cairo: Imprimé Schindler, 1936 - p. 241-265, 24 cm
Offprint--Egypt--Geography--Western Desert