{"id":"000030444","type":"book","title":"The prehistory of the Nile Valley : AAAS Symposium 26. December 1968, Dallas, Texas. - Washington, D.C","container-title":"Science ; 162, no. 3857, S. 1032-1033 : 1 Ill","author":[{"family":"Wendorf","given":"Fred."}],"issued":{"raw":"1968"}}