American Geological Institute <br/><br/>
Environmental science/  	 
American Geological Institute 
 - Philippine edition 
 - Singapore :    Cengage Learning,  c2012.  
 - 392 pages :   illustrations ;   23 cm. 
<br/><br/>Includes glossary and index.<br/> 
<br/><br/><label>ISBN: </label>9789814410892 (pbk.)