Stallings, William. <br/><br/>
Network security essentials :  applications and standards / 
William Stallings. 
 - 4th ed. 
 - New Delhi :  Pearson Education,  c2011 [Reprinted 2013]. 
 - xiii, 417 pages :  illustrations ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>97881317617555 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks--Security measures.<br/>Computer security.
<br/><br/><label>Dewey Class. No.: </label>005.8 STA