Stallings, William <br/><br/>
Data and computer communications / 
William Stallings 
 - 9th ed. 
 - Boston :  Pearson Education,  c2011. 
 - xxv, 853 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9780132172172 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems<br/>Computer networks
<br/><br/><label>LC Class. No.: </label>TK5105  / .S73 2011