Basic concepts in biology 
Gerard L. Penecilla...[et al.]. 
 - Bulacan  Trinitas Pub.  2003. 
 - 291[7] p.  ill. 
<br/><br/><label>ISBN: </label>9714203341 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology--Study and teaching (Higher)--Philippines.