VISHWANATHAN, T. <br/><br/>
TELECOMMUNICATION SWITCHING SYSTEMS AND NETWORKS 

 - NEW DELHI  PHI-Learning  2006 
 - xx+583p., 
<br/><br/><label>ISBN: </label>81-203-0713-5 
<br/><br/><label>Dewey Class. No.: </label>621.382 V822