Stephan S. Jones , Ronald J. Kovac , Frank M. Groom <br/><br/>
Introduction to communications technologies : a guide for non- engineers, 3rd edition  

 -  T&F India 
<br/><br/><label>ISBN: </label>9780367240790 
<br/><br/><label>Dewey Class. No.: </label>621.382 STE