Langley, Graham. <br/><br/>
Telephony's dictionary :  defining 16,000 telecommunication words and terms / 
by Graham Langley. 
 - 2nd ed. 
 - Chicago, Ill. :  Telephony Pub. Corp.,  1986. 
 - xi, 402 p. :  ill. 
<br/><br/> Cover title : International dictionary of telecommunications. 
<br/><br/><label>ISBN: </label>0917845048 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--Dictionaries.
<br/><br/><label>LC Class. No.: </label>TK5102  / .L36 1986 
<br/><br/><label>Dewey Class. No.: </label>621.38/03/21�19