Stallings, William <br/><br/>
Data and computer communications. 

 - 8th ed. 
 - Upper Saddle River, N.J.:  Pearson Education , Inc.,   2007. 
 - xviii, 878p.; 25cm 
<br/><br/>"N" 
<br/><br/><label>ISBN: </label>"13: 978-0-13-243310-5" 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks 2. Data transmission systems 
<br/><br/><label>Subjects--Index Terms: </label>"Y" 
<br/><br/><label>LC Class. No.: </label>TK5105  / .S73