APA (7th ed.) Citation

Safari Tech Books Online, Cheswick, W. R. A., Rubin, A. D. C., & Bellovin, S. M. C. (2003). Firewalls and Internet Security: Repelling the Wily Hacker (2nd ed.). Addison Wesley Professional.

Chicago Style (17th ed.) Citation

Safari Tech Books Online, William R Author Cheswick, Aviel D Contributor Rubin, and Steven M Contributor Bellovin. Firewalls and Internet Security: Repelling the Wily Hacker. 2nd ed. [Place of publication not identified]: Addison Wesley Professional, 2003.

MLA (9th ed.) Citation

Safari Tech Books Online, et al. Firewalls and Internet Security: Repelling the Wily Hacker. 2nd ed. Addison Wesley Professional, 2003.