Christopherson, Robert W.  <br/><br/>
Elemental geosystems / 
Robert W. Christopherson  
 - Seventh edition 
 - Boston :  Pearson,   2013. 
 - xxi, 568 pages :  28 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780132698566   Pbk., Bp. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography
<br/><br/><label>LC Class. No.: </label>GB 54.5 C57 2013 CIRC