Graham, John. <br/><br/>
The facts on file dictionary of telecomunications / 
John Graham. 
 - New York :  Facts on File,  1991. 
 - ix, 180 p :  ill. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0816020299 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunications--Dictionaries.
<br/><br/><label>LC Class. No.: </label>TK5102  / .G73