{"id":"000031186","type":"article","title":"Upper Sangoan industries from Northern Nyasaland and the Luangwa Valley","publisher":"South African Association for the Advancement of Science","publisher-place":"Johannesburg /[u.a","container-title":"South African journal of science, 8, S.201, - 208","author":[{"family":"Clark","given":"J. Desmond (John Desmond)"}],"issued":{"raw":"1954"}}