Frenzel, Louis E <br/><br/>
Principles of electronic communication systems 

 - 3rd ed 
 - Tata Mcgraw-Hill Publishing, New Delhi  2008 
 - xiii, 885 
<br/><br/><label>ISBN: </label>0-07-066755-1 
<br/><br/><label>Dewey Class. No.: </label>621.38 Fre