Communications / 
Robin Kerrod; illustrated by Ted Evans.   
 - New York :   Marshall Cavendish,  1995. 
 - 64p. : col. ill.   
<br/><br/> Includes glossary and index. 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>CIR 302.2 K468 1995