Thornbury, William D. <br/><br/>
Principles of Geomorphology 

 - New York  John Wiley & Sons  1969 
 - p.618 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mass Wasting<br/>Mountain Glaciation<br/>Karst Topography
<br/><br/><label>Dewey Class. No.: </label>551.4 T497