Environmental science 
American Geological Institute. 
 -  Cengage Learning Asia Pte Ltd.  2012 
 - 392 pages 
<br/><br/>
<br/><br/><label>ISBN: </label>978-9-81441089-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science.
<br/><br/><label>Dewey Class. No.: </label>304.2 E61 2012