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Nomads and settlers in Syria and Jordan, 1800-1980
Lewis, Norman N., (1987)
Space, structures and land in Shams ed-Dīn Tannīra on the Euphrates
Seeden, Helga, (1984)
Arabs and Nubians in New Halfa : a study of settlement and irrigation
Salem-Murdock, Muneera, (1989)