APA (7th ed.) Citation

Bellovin, S., & Cheswick, W. (1994). Firewalls and internet security: Repelling the wily hacker. Addison-Wesley.

Chicago Style (17th ed.) Citation

Bellovin, S., and W. Cheswick. Firewalls and Internet Security: Repelling the Wily Hacker. New York: Addison-Wesley, 1994.

MLA (8th ed.) Citation

Bellovin, S., and W. Cheswick. Firewalls and Internet Security: Repelling the Wily Hacker. Addison-Wesley, 1994.

Warning: These citations may not always be 100% accurate.