Christopherson, Robert W. <br/><br/>
Geosystems :  an introduction to physical geography / 
Robert W. Christopherson. 
 - 8th ed. 
 - Upper Saddle River, NJ :  Pearson Prentice Hall,  2012. 
 - xxvii, 623, [37] p. :  ill. (chiefly col.), col. maps ;  29 cm 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780321706225 (hbk.)  RM380.58 0321706226 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography.