Kennedy, George  & Davis, Bernard <br/><br/>
Electronic communication systems 

 - 4th ed 
 - Tata McGraw Hill, New Delhi  1999 
 - xv,763p 
<br/><br/><label>ISBN: </label>0-07-463682-0 
<br/><br/><label>Dewey Class. No.: </label>621.380413 Ken/Dav