Gnanasivam, P.,  <br/><br/>
Telecommunication Switching and Networks 

 - 2nd. 
 - Mumbai  New Age International Publishers  2010 
 - 324p.  [E1] 
<br/><br/><label>ISBN: </label>812241950x 
<br/><br/><label>Dewey Class. No.: </label>621.3821  / GNA/TEL