1. PZ 2855/1932 'Southern Arabia: Enquiry from Mr F.B. Lacy regarding possible presence of mineral deposits.' Date: 1932/1933 Language: English Geographic region: Dhufar
2. Pol Ext 8303/49 'Geology and mineral resources of Dhofar: request for reports of A L von Krafft and R P Oldham 1900-01' Date: 1949/1949 Language: English Geographic region: OmanDhofar
