Northcutt,Stephen ...[et al.]. <br/><br/>
Inside network  perimeter security / 

 - USA,  New Riders,  c2003. 
 - xxvii, 678p. ;  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0735712328 
<br/><br/><label>Dewey Class. No.: </label>005.8