Behrouz A. Forouzan & Sophia Chung Fegan <br/><br/>
Data communications and networking .-4th ed .-978-0-07-063414-5 

 - Tata McGraw Hill, New Delhi  2006 
 - xxxiv,1134p 
<br/><br/><label>ISBN: </label>978-0-07-063414-5 
<br/><br/><label>Dewey Class. No.: </label>001.64404 For/Feg