Data communications and networking: 
Forouzan A.Behrouz 
 - 4th ed. 
 - New Delhi  McGrawhill companies  2006 
 - 1134p. 
<br/><br/><label>ISBN: </label>0-07-063414-9 
<br/><br/><label>Subjects--Topical Terms: </label>--School of Engineering and Technology