Comer,douglas e /   <br/><br/>
Computer networks and internets  

 - 2nd ed. 
 - London : prentice hall, c1999  
<br/><br/><label>ISBN: </label>0130836176 
<br/><br/><label>Subjects--Topical Terms: </label><br/>COMPUTER NETWORKS  2. INTENETWORKING (TELECOMMUNICATION
<br/><br/><label>Dewey Class. No.: </label>004.6 COM