Langley, Graham <br/><br/>
Telephony's dictionary / 
by Graham Langley 
 - 2nd ed. 
 - Chicago :  Telephony Pub. Corp.,  1986 
 - xi, 402 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0917845048 ;  PND24.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication--Dictionaries
<br/><br/><label>Dewey Class. No.: </label>384.03