Cita APA

Zwicky, E. D., Cooper, S., & Chapman, D. B. (2000). Building Internet Firewalls O'Reilly.

Citación estilo Chicago

Zwicky, Elizabeth D., Simon Cooper, and D. Brent Chapman. Building Internet Firewalls. 2nd ed. Beijing: O'Reilly, 2000.

Cita MLA

Zwicky, Elizabeth D., Simon Cooper, and D. Brent Chapman. Building Internet Firewalls. 2nd ed. Beijing: O'Reilly, 2000.