Thornbury, William D.  1900- <br/><br/>
Principles of geomorphology / 
William D. Thornbury. 
 - 2d ed. 
 - New Delhi,  CBS Publishers,  c2002. 
 - xi, 594 p. :  ill., maps ;  22 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>8123908113 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomorphology.
<br/><br/><label>Dewey Class. No.: </label>551.3 THO