Singh, R.P.  <br/><br/>
Communication Systems: Analog and Digital 

 - 2nd 
 - New Delhi  Tata McGraw Hill Education  2009 
 - 584p. 
<br/><br/><label>ISBN: </label>9780070634541 
<br/><br/><label>Dewey Class. No.: </label>621.382  / Sin-C