Christopherson, Robert W. <br/><br/>
Geosystems :  an introduction to physical geography / 
Robert W. Christopherson. 
 - 8th ed. 
 - Boston :  Prentice Hall,  c2012. 
 - xxvii, 623, [37] p. :  col. ill., col. maps ;  29 cm. 
<br/><br/> Fakulti Sains Bumi.  Includes index. 
<br/><br/><label>ISBN: </label>9780321706225 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography.