Reference volume and series index. 

 - New York :  Oxford University press,  c 2002. 
 - 48 p. :  ill. ;  28 cm. 
 - The young oxford library of science,  v.11. .
<br/><br/> Includes Index. 
<br/><br/>314  314 
<br/><br/><label>ISBN: </label>0-19-521906-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science<br/>Science -- Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>500 / Y84