Hills, E. Sherbon . Elements of Structural Geology / Textual Documents E. Sherbon Hills. - 2nd ed. / - London : Chapman and Hall , C1963. - viii,502p. : ill ; 23cm . Index ISBN: 0-412-20750-8 Subjects--Index Terms: Geology Structural Geology G-Geology Dewey Class. No.: 551.8 / Hi 55 El