United States, Department of the Army (1973) "Table 1. Distribution of the Population of Libya, by Governorates 1964 and 1972" Libya (Department of the Army pamphlet 550) Government Printing Office, Washington, D.C. page 60
United States Department of State (1970) U.S. Department of State fact book of the countries of the world Crown Publishing, New York, page 404, OCLC164829948
