Forouzan,  Behrouz A ,. <br/><br/>
Data Communications and Netgworking/ 
by Behrouz A Forouzan. 
 - 4th ed. 
 - New Delhi  Tata Mc Graw Hill  2009 
 - xxxiv,1134:  24cm. 
<br/><br/><label>ISBN: </label>9780070634145 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Engineering<br/>Data Communication1<br/>Networking
<br/><br/><label>Dewey Class. No.: </label>004.6