William Stallings <br/><br/>
Network Security Essentials Applications and Standards 

 - 6th ed. 
 - New Delhi  Pearson  2018 
 - 461p,: 
<br/><br/> It includes index 
<br/><br/><label>ISSN: </label>
<br/><br/><label>Dewey Class. No.: </label>005.8