KELLER, Edward A. <br/><br/>
ENVIRONMENTAL GEOLOGY 

 - 4th Ed. 
 - New Delhi  C.B.S. Publishers and Distrbutors, New Delhi   1985 
<br/><br/><label>ISBN: </label>0 675 20373 2 
<br/><br/><label>Dewey Class. No.: </label>551.7  / KEL/EN