Christopherson, Robert W. <br/><br/>
Geosystems: an introduction to physical geography 
by Robert W. Christopherson 
 -  Pearson  2005 
 - xix, 681 pages; 29 cm.  
<br/><br/> Includes index.  
<br/><br/><label>ISBN: </label>0-13-144196-5 
<br/><br/><label>Dewey Class. No.: </label>910.02/C46/2005