Cita APA (7th ed.)

Chapman, D. B. (1995). Building internet firewalls. O'Reilly.

Cita Chicago (17th ed.)

Chapman, D. Brent. Building Internet Firewalls. Sebastopol, CA: O'Reilly, 1995.

Cita MLA (9th ed.)

Chapman, D. Brent. Building Internet Firewalls. O'Reilly, 1995.