The American Geological Institute <br/><br/>
Environment science / 
The American Geological Institute. 
 - Phil. ed. 
 - Pasig City :  Cengage Learning Asia (Philippine branch),  c2012. 
 - 392 p. ill. ; 26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9789814410892 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences.<br/>Environmental protection.