1. Coll 1/54 'Aden. Recruitment of Arabs from the Aden Protectorate and the Yemen for service with the Italian Colonial forces in Italian Somaliland; recruitment of Indians' Date: 1934/1935 Language: English Geographic region: YemenItalian Somaliland
2. Coll 30/210 'Bahrein Oil: production of aviation fuel (100 octane) at Bahrein' Date: 1938/1946 Language: English
