1. 'ARABIA. Route Traverse across the RUB' AL KHALI from DHUFAR TO DOHA by BERTRAM THOMAS 1930-31' Date: 1931/1931 Language: English Geographic region: Rubʻ al Khālī
2. 'File 38/15 Oil concessions in Arabia and the Gulf (Muscat)' Date: 1933/1949 Language: English Geographic region: BuraimiSaudi ArabiaRubʻ al KhālīOman
3. 'SKETCH MAP OF THE PERSIAN GULF & ARABIAN COAST' Date: 1913/1913 Language: English Geographic region: Ruba'-al-Khaila
4. ‘WILFRED THESIGER’ Date: 1948/1950 Language: English Geographic region: Abu DhabiOmanEmpty QuarterAl-Buraymī
6. PZ 2429/1935 'Count Byron de Prorok: activities in Yemen and Persian Gulf' Date: 1935/1939 Language: English Geographic region: MuscatRubʻ al KhālīYemen
7. Coll 6/79 'Oil: Oil concessions in South East Arabia (Rub'al Khali).' Date: 1936/1937 Language: English Geographic region: Ruba' al Khali