Dela Peņa,Joy V. <br/><br/>
Study guide in biological science/ 
Joy V. Dela Peņa. 
 - Quezon City:  Wiseman's Books Trading,  c2004. 
 - 213 pages:  illustrations;  29 cm. 
<br/><br/><label>ISBN: </label>971-92885-0-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Study guide
<br/><br/><label>Dewey Class. No.: </label>DFil 570  / D375