Ferrer, Miriam Colonel, Ruth Lusterio, David andrade <br/><br/>
Resolusyon ng tungalian sa kalikasan 

 -  1998 
 - 89  p. 
<br/><br/><label>ISBN: </label>917420289 
<br/><br/><label>Dewey Class. No.: </label>Fil 508 R31 1998