Holden, G. (2003). Guide to firewalls and network security: With intrusion detection and VPNs. Thomson Learning.
Chicago-referens (17:e uppl.)Holden, Greg. Guide to Firewalls and Network Security: With Intrusion Detection and VPNs. Thomson Learning, 2003.
MLA-referens (8:e uppl.)Holden, Greg. Guide to Firewalls and Network Security: With Intrusion Detection and VPNs. Thomson Learning, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.