Strahler, Arthur Newell,  1918- <br/><br/>
Principles of physical geology 
Arthur N. Strahler 
 - New York  Harper & Row  c1977 
 - x, 419 p.  ill.  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geology
<br/><br/><label>Dewey Class. No.: </label>551