The physical basis of geography : an outline of geomorphology / by S. W. Wooldridge and R. S. Morgan. Geomorphology. Wooldridge, Sidney William. Morgan, Ralph Sisk, joint author. Geology. Physical geography. QE26 .W6 551 WOP Includes bibliographical references and index. London ; New York : Longmans, Green and Co., 1937. 1937. 1937 Text xxi, 445 p. : eng The university geographical series