Penck, Walther, 1888-1923. Morphological analysis of land forms : a contribution to physical geology / by Walther Penck ; translated by Hella Czech and Katherine Cumming Boswell. - London : Macmillan, 1953. - xiv, 429 p., [9] leaves of plates : ill. ; 22 cm. Translation of Die morphologische Analyse. Includes bibliographical references and index. Subjects--Topical Terms: Geology, Structural. Dewey Class. No.: 551.8 / PEM 1953