SAPNA KATIYAR <br/><br/>
TELECOMMUNICATION SWITCHING SYSTEMS 

 - 
 -  SK KATARIA AND SONS.  2012 
 - 286 p. 
<br/><br/><label>ISBN: </label>9789350142424 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SWITCHES
<br/><br/><label>Dewey Class. No.: </label>621.387 KAT  / SAP