Dodd, Annabel Z., <br/><br/>
The Essential Guide to Telecommunications  

 - 3rd edi. 
 - Delhi :  Pearson Education,  c2002. 
 - xxiv, 500 p.:  [E24] 
<br/><br/>This Book having Bibliography. 
<br/><br/><label>ISBN: </label>8178089955 
<br/><br/><label>Dewey Class. No.: </label>621.385  / DOD/THE