Broadcasting & communications / 
edited by Linda Fox. 
 - New York :  Arco Pub.,  1978. 
 - 118 p. :  ill. (some col.) ;  30 cm. 
<br/><br/> This material previously appeared in the publication, How it works. 
<br/><br/>Includes index. 
<br/><br/> Describes the inner workings of the equipment used in telecommunications and broadcasting. 
<br/><br/><label>ISBN: </label>0668045574 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--Juvenile literature.<br/>Broadcasting--Juvenile literature.