Ndu, F. O. C. <br/><br/>
Certificate notes :  O-level biology. 

 - [Harlow] :  Longman,  [1982] 
 - Study for success books .
<br/><br/><label>ISBN: </label> L.2.85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology -- Study and teaching.--Biology -- Study and teaching.