Firewalls : a complete guide  
Marcus  
 - New York :  McGraw-Hill,  c2000. 
 - xxi, 678 p. :  ill. ;  24 cm. +  1 CD-ROM (4 3/4 in.) 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0072127945 0071356398 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Firewalls (Computer security)
<br/><br/><label>Dewey Class. No.: </label>005.8