T. Viswanathan <br/><br/>
Telecommunication Switching Systems & Networks 
by T. Viswanathan, M. Bhatnagar 
 - New Delhi  PHI  2015 
 - 620 
<br/><br/><label>ISBN: </label>8120350830 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECE