Vega, Milagros Andaya <br/><br/>
Biology and the environment / 
Milagros A. Vega. 
 - Manila :  Goodwill Trading Co,  c1982. 
 - xvi, 239 p. : ill. 
<br/><br/> Includes glossary, bibliography, appendix and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology