Cita APA (7a ed.)

Noonan, W. J., & Dubrawsky, I. (2006). Firewall fundamentals. Cisco.

Cita Chicago Style (17a ed.)

Noonan, Wesley J., y Ido Dubrawsky. Firewall Fundamentals. Indianapolis, Ind.: Cisco, 2006.

Cita MLA (8a ed.)

Noonan, Wesley J., y Ido Dubrawsky. Firewall Fundamentals. Cisco, 2006.