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

 - New Delhi :  Tata McGraw-Hill Publishing Company Limited,   c1995.  
 - xiv, 592 p.:  [E4] 
<br/><br/><label>ISBN: </label>0074603396 
<br/><br/><label>Dewey Class. No.: </label>621.382  / SIN/COM