Worester, Philip G. <br/><br/>
Textbook of geomorphology 

 - 2nd ed 
 - New York  Van Nostrand Reinhold Company  1948 
 - vii,584p.   
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<br/><br/><label>Subjects--Index Terms: </label>Geomorphology  Geology 
<br/><br/><label>Dewey Class. No.: </label>551.4