Forouzan, Behrouz A. <br/><br/>
Datacommunications and networking. 

 - 4th ed. 
 - New Delhi :  Tata McGraw-Hill,       2007. 
 - xxxiv, 1134p. 
<br/><br/><label>ISBN: </label>978070634145 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science