Singh, R. P. <br/><br/>
Communication systems :  analog and digital / 

 - 3rd ed. 
 - New Delhi :  McGraw Hill Education (India) Pvt. Ltd.,  2012. 
 - xix, 750 p. :  ill . ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781259004605 
<br/><br/><label>LC Class. No.: </label>20993-20997 
<br/><br/><label>Dewey Class. No.: </label>621.382  / SIN