Stallings, William. <br/><br/>
Data and computer communications / 
William Stallings. 
 - 8th ed. 
 - Upper Saddle River, NJ. :  Prentice-Hall,  2009. 
 - xviii, 878 p. 
<br/><br/><label>ISBN: </label>0135071399 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data trasmission system.<br/>Computer networks.
<br/><br/><label>LC Class. No.: </label>TK5105   / .S73 2009