"Beckett, B. S" <br/><br/>
Biology 

 -  oxford Press,,Nelson,Redspot,collins,Marshalk Cavendish,Federal,Oxford  1997 
 - 315 
<br/><br/><label>ISBN: </label>9780199142606 
<br/><br/><label>Dewey Class. No.: </label>570  / T.525