Christopherson, Robert W. <br/><br/>
Geosystems :    an introduction to physical geography /  
Robert W. Christopherson. 
 - 7th ed. 
 - Upper Saddle River, N.J. :    Pearson/Prentice Hall,    c2009. 
 - 1 v. (various paging) :    col. ill. ;    27 cm +    1 CD-ROM. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780137154968 
<br/><br/><label>LCCN: </label>2008053933 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography.
<br/><br/><label>Dewey Class. No.: </label>910.02