Stallings, William. , <br/><br/>
Network security essentials : applications and standards 

 - 3rd ed. 
 - New Delhi:  Pearson Education,  2007. 
 - xiv;409p:  ill.;  24 cm. 
<br/><br/> Previous ed.: 2003.  
<br/><br/><label>ISBN: </label>9788131716649 
<br/><br/><label>Dewey Class. No.: </label>005.8 STA