Strahler, Alan Introducing physical geography / Alan Strahler. - 6th ed. - New Delhi : Wiley India Pvt. Ltd., ©2013. - xviii, 641 p. : ill ; 28 cm. Includes bibliographical references and index. ISBN: 9788126562251 Subjects--Topical Terms: Physical geography Dewey Class. No.: 910.02 / STR 550