Light and vision. 

 - Singapore :  Regency Pub. Group,  c1993. 
 - [42] p. : ill. (part col.) 
 - World of science .
<br/><br/> Includes index,. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Light--Juvenile literature<br/>Photography--Juvenile literature<br/>Television--Juvenile literature