Introduction to biology / 
Melchor, Marciano B. 
 - 1st ed. 
 - Manila :  Rex Book Store, Inc.,  2007. 
 - xii, 152 p.: ill. ; 22.2cm. 
<br/><br/>includes bibliography, index 
<br/><br/><label>ISBN: </label>9789712348730 
<br/><br/><label>Dewey Class. No.: </label>Fil 570 517 2007