Christopherson, Robert W. <br/><br/>
Geosystems : 
Christopherson, Robert W. 
 - [S.l.] :  Addison Wesley Longman,  2001 
 - 688 p. ; 
<br/><br/><label>ISBN: </label>0130613452 (hardcover) | 97801 
<br/><br/><label>Dewey Class. No.: </label>551 C553 G