Standard grade biology / 
James Torrance, Team Co-ordinator. 
 - London :  Hodder and Stoughton,  1989. 
 - vi, 218 p. :  ill. 
<br/><br/><label>ISBN: </label>0340493690 
<br/><br/><label>LCCN: </label>91025171     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Organisms--For schools.