Bellamy, John C. <br/><br/>
Digital Telephony 

 - 2a. ed 
 - New York :   Wiley,   1991. 
 - xix , 572 p. : 34 cm. 
 - Wiley Series in Tele .
<br/><br/><label>ISBN: </label>0471620564 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TELEFONIA DIGITAL<br/>COMUNICACIONES DIGITALES
<br/><br/><label>Universal Decimal Class. No.: </label>621.395