Deb, N.N., <br/><br/>
Tele Communication Engineering :  Line Communication Volume 2  

 - New Delhi:  New Age International (P) Limited Publishers,  xi, 308 p.: 
 - xi, 215 p.:  [E24] 
<br/><br/><label>ISBN: </label>812241253x 
<br/><br/><label>Dewey Class. No.: </label>621.385  / DEB/TEL