Nuffield Foundation <br/><br/>
Biology 
Teachers' Guide V the Perpetuation of Life 
 - London  Longmans/Penguin Books  1967 
 - 234 
<br/><br/><label>Publisher. No.: </label> Inter. Book House 
<br/><br/><label>Subjects--Personal Names: </label> Biology 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology