Elementary practical geology [by] E. de C. Clarke, R. T. Prider [and] C. Teichert. Clarke, E. de C. (Edward de Courcy), 1880-1946. Prider, R. T., joint author. Teichert, Curt, 1905-1996, joint author. Geology. QE33 .C63 1968 550 CLE [Nedlands, Perth] University of Western Australia Press [1968] [1968] 1968 Text x, 212 p. eng