KLB <br/><br/>
Secondary biology form four: students' book 

 - Nairobi  K.L.B.  2005 
 - p136 
<br/><br/><label>ISBN: </label>9966-44-609-5 
<br/><br/><label>LC Class. No.: </label>QH 308.7  /  .K46 2005 V.4