Environmental science : 
Nebel, Bernard J. 
 - Seventh edition. 
 -  Prentice Hall.  2000 
 - xv, 664 pages 
<br/><br/>
<br/><br/><label>ISBN: </label>0-07-353254-1 (hard copy : alk. paper) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.
<br/><br/><label>Dewey Class. No.: </label>363.7 N27e 2000