Viswanathan,Thiagarajan <br/><br/>
Telecommunication switching systems and networks / 
Viswanathan,Thiagarajan. 
 - New Delhi:  Prentice Hall of India,  1992. 
 - xx,583p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0876927134 
<br/><br/><label>Dewey Class. No.: </label>621.382 VIS