Christopherson, Robert W. <br/><br/>
Elemental geosystems / 
Robert W. Christopherson 
 - 2nd ed. 
 - Upper Saddle River, N.J. :  Prentice Hall,  c1998 
 - 534 p. :  col. maps, col. ill. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0137435355 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PHYSICAL GEOGRAPHY
<br/><br/><label>LC Class. No.: </label>GB54.5  / C474E 1998