Chewick , R. William   & Bellovin, M. Steven <br/><br/>
Firewalls and internet security : replling the wily hacker 

 - Addison-Wesley publishing company, Reading  1994 
 - xiv;306p 
<br/><br/><label>ISBN: </label>0-201-63357-4 
<br/><br/><label>Dewey Class. No.: </label>004.678 Che/Bel