Cole,Eric. <br/><br/>
Network Security Bible 
Eric Cole, Ronald krutz, James W. Conley 
 - 2nd ed. 
 - New Delhi :  Wiley India Pvt.Ltd  c2009. 
 - xliv, 891 p.:  ill.; 
<br/><br/><label>ISBN: </label>9788126523213 
<br/><br/><label>Dewey Class. No.: </label>005.82  / COL/NET