The Grolier science encyclopaedia. 

 - London :  Kingfisher,  2000. 
 - 48 p.:   col. ill.  28 cm. 
<br/><br/>volume 1 planet earth;  volume 8 electricity and electronics; volume 9 space and time 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-0-7534-1310-4 
<br/><br/><label>LC Class. No.: </label>503 G89 2010