APA (7th ed.) Citation

Whitman, M. E. (2009). Guide to firewalls and network security: With intrusion detection and VPNs (2nd ed.). Course Technology/Cengage Learning.

Chicago Style (17th ed.) Citation

Whitman, Michael E. Guide to Firewalls and Network Security: With Intrusion Detection and VPNs. 2nd ed. Clifton Park, N.Y: Course Technology/Cengage Learning, 2009.

MLA (9th ed.) Citation

Whitman, Michael E. Guide to Firewalls and Network Security: With Intrusion Detection and VPNs. 2nd ed. Course Technology/Cengage Learning, 2009.