Christopherson, Robert W. <br/><br/>
Geosystems :  an introduction to physical geography / 
Robert W. Christopherson 
 - 6th ed. 
 - New Jersey :  Pearson,  2006. 
 - xxi, 675 [various] p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography<br/>Earth systems
<br/><br/><label>Dewey Class. No.: </label>910.021 CHG