Worcester, Philip G. A textbook of Geomorphology / by Philip G. Worcester - 2nd ed. - New York ; New Jersy: D. Van Nostrand, 1948 [Reprinted 1949, 1964] - vii, 584 p. : ill. ; 23 cm. Includes index Subjects--Topical Terms: Geology Geomorphology Dewey Class. No.: 551.4 / WOT 1949-1964