Forouzan, Behrouz A. <br/><br/>
Data Communications and Networking / 
Forouzan, Behrouz A. 
 - 4th ed. 
 - xxxiv, 1134p. 
<br/><br/><label>ISBN: </label>0070634149 
<br/><br/><label>Dewey Class. No.: </label>004.6