Keller, Edward A. <br/><br/>
Environmental geology/ 
Edward A. Keller 
 - 5th ed. 
 - Columbus:   Merrill Publishing Company,   1988. 
 - xiii, 540p.:   ill. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0675208890 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental geology
<br/><br/><label>LC Class. No.: </label>QE 38 KEL 1988