Barker, W. B. <br/><br/>
Concise biology 

 - London  Longman  1971 
 - 375p. 
<br/><br/><label>ISBN: </label> UKP 1.30 
<br/><br/><label>Source: </label> UKP 1.30 
<br/><br/><label>Dewey Class. No.: </label>574 BAR