Christopherson, Robert W. <br/><br/>
Geosystems :  an introduction to physical geography / 
Robert W. Christopherson. 
 - 3rd ed. 
 - Upper Saddle River, NJ :  Prentice Hall,  c1997. 
 - xix, 656, 44 p. :  col. ill., col. maps ;  29 cm. 
<br/><br/><label>ISBN: </label>0135053145 
<br/><br/><label>LCCN: </label>2009379460 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography.
<br/><br/><label>LC Class. No.: </label>GB54.5  / .C48 1997