Wickens, G. E. Role of Acacia species in the rural economy of dry Africa and the Near East / by G. E. Wickens with the collaboration of A.G. Seif El Din, Guinko Sita, Ibrahim Nahal. - Rome : FAO, 1995. - 56, [80] : col. ill., map. - FAO conservation guide ; 27. . ISBN: 9251036519 Subjects--Topical Terms: Acacia--Africa.