Thornbury, William D. <br/><br/>
Principles of Geomorphology / 
William D. Thornbury. 
 - Wiley international ed. 2nd ed. 
 - New York :  John willy and sons,  c 1954. 
 - xi, 594 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>47  47 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geomorphology.
<br/><br/><label>Dewey Class. No.: </label>551.4 / T393p