Stallings, William <br/><br/>
Data and computer communications 

 - 5 
 - New Delhi  Prentice-Hall  1997 
 - xviii, 798p 
<br/><br/> Includes bibliography and index 
<br/><br/><label>ISBN: </label>8120312406 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Circuit switching<br/>Data communication<br/>Data communication -- Architecture<br/>Data communication -- Protocols<br/>Data encoding<br/>Data transmission<br/>Integrated services digital networks (ISDN)<br/>Local area networks<br/>Network security<br/>Packet switching<br/>Protocols -- Data communication<br/>Wide area networks