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Search keyword：(Author: #Callow P.)
Excavations in beds III, IV, and the Masek beds, 1968-1971 / M.D. Leakey with D.A. Roe ; with contributions by P. Callow ... [et al.]
Cambridge [England] : Cambridge University Press , 1994. - (Olduvai Gorge ; v. 5)
Stone age prehistory : studies in memory of Charles McBurney / edited by G.N. Bailey and P. Callow
Cambridge [Cambridgeshire] ; New York : Cambridge University Press , 1986