Velasquez, Carmen C. Asis, Consuelo V. <br/><br/>
Modern biology:  with biology investigations 

 - Philippine Version 
 - Manila, Philippines  National Book Store  1993 
 - 829  p. 
<br/><br/><label>ISBN: </label>971-08-5467-4 
<br/><br/><label>Dewey Class. No.: </label>FIL 577 V45 1993