Tayo, Gilma T...[et al.] <br/><br/>
Fundamentals of Environmental Science. 

 - 1st/ed. 
 - Philippines :  Trinitas Publishing, Inc.,  c2004. 
 - 125p.  illus. (np)  26cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9714204585 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--c2004--Philippines--newsprint<br/>Environmental sciences--c2004--Philippines--newsprint