{"id":"000335787","type":"book","title":"The Unesco Libyan Valleys Survey. Environmental change and human settlement in Tripolitania","pages":"15-24","container-title":"Environmental change and human culture in the Nile Basin and Northern Africa until the second millennium B.C. Proceedings of the international symposium, Dymaczewo near Poznań 5-10 September 1988","author":[{"family":"Barker","given":"G."}]}