Forouzan, Behrouz A. <br/><br/>
Data Communications and Networking 

 - 2nd ed. 
 - New Delhi :  Tata McGraw-Hill,  2001. 
 - xxxii. 944 p:   illus,  23.7 cm 
<br/><br/><label>ISBN: </label>9780070499355 
<br/><br/><label>Dewey Class. No.: </label>004.6 FOR