Ditan, Carolina D. <br/><br/>
Introduction to biological science. 

 - rev. ed. 
 - Quezon City :  Kalayaan Press Marketing,  c1994. 
 - 220 p. :  ill. ;  22 cm. 
<br/><br/> Includes bibliography (p.219-220). 
<br/><br/><label>ISBN: </label>9710856731