Comer, Douglas E. <br/><br/>
Computer networks and internets : with internet applications / 
Comer, Douglas E. 
 - 4th ed. 
 - New Delhi:  Dorling Kindersley (India) Pvt. Ltd.,  2011. 
 - xxviii,589p.;24cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>8177589276 
<br/><br/><label>Dewey Class. No.: </label>004.6 COM