Forouzan, Behrouz A <br/><br/>
Data communications and networking 
Behrouz A. Forouzan with Catherine Coombs and Sophia Chung Fegan. 
 - 2nd ed. 
 - New Delhi  Tata McGraw Hill  2002 
 - xxxii, 908p., 25cm. 
<br/><br/><label>ISBN: </label>0-07-043563-4. 
<br/><br/><label>Dewey Class. No.: </label>004.66  / F65D