Stallings, William <br/><br/>
Business Data Communication  Infrastructure, Networking and Security 
Thomas Case 
 - 7th edt. 
 - England  Pearson   2013 
 - 619p  graph  23cm. 
<br/><br/> Include index 
<br/><br/><label>LC Class. No.: </label>HF5548.2  / St2