Environmental science :  The Economy of nature and Ecology of Man 
Lee, Sergio J. 
 - 2nd ed. 
 - Quezon City :  Cengage Learning Assia Pte Ltd (Philippiness Branch)  c2010. 
 - xi, 257 p.  ; illus. ; (np) ;  25 cm. 
<br/><br/><label>ISBN: </label>9789715849692 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science--c2010.--Quezon City--newsprint.