Keller, Edward A. <br/><br/>
Introduction to environmental geology 
/ Edward A. Keller 
. - 4th ed. 
. - New Jersey  : Pearson Education, 2008
. - XVIII-661 p.  : ill.  ; 28 cm. 
<br/><br/>Index 
<br/><br/><label>ISBN: </label>9780136135210 
<br/><br/><label>Universal Decimal Class. No.: </label>551.1