Graham, John .,  1936- <br/><br/>
The Penguin dictionary of telecommunications .  [Reference /] 
John Graham. 
 - London :  Allen Lane,  1983. 
 - 199 p. :  ill. ;  23 cm. 
 - Penguin reference books .
 - Penguin reference books .
<br/><br/> All age. 
<br/><br/><label>ISBN: </label>0140511075 0713913703 0713913703 : 0713913703 : 0140511075 (pbk) : 0140512373 
<br/><br/><label>LCCN: </label>83131821  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--Dictionaries.
<br/><br/><label>LC Class. No.: </label>TK5102 TK5102  / .G74x 1983 
<br/><br/><label>Dewey Class. No.: </label>621.38032 621.380321 
<br/><br/><label>National Library of Medicine Call No.: </label> / GP