Forouzan, Behrouz A <br/><br/>
Data communications and networking 

 - 4th ed. 
 - New Delhi  Tata  2006-R2007 
 - xxxiv,1134p.  PB  24cm. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>9780070634145 
<br/><br/><label>Dewey Class. No.: </label>004.6  / FOR