{"id":"000028562","type":"book","title":"Archaeological excavation in the Calico Mountains, California : preliminary report. - Washington, D.C","container-title":"Science ; 160.1968, no. 3831, S. 1022-1023","author":[{"family":"Leakey","given":"L. S. B. 1903-1972."}],"issued":{"raw":"1968"}}