Beyda, William J. <br/><br/>
Data Communications 

 - New Delhi:  Dorling Kindersley,  2012. 
 - xv, 379  (R 15 SH 1) 
<br/><br/><label>ISBN: </label>9788131788189 
<br/><br/><label>Source: </label> Pak Book   PKR 678.60 
<br/><br/><label>Dewey Class. No.: </label>004.6