Cita APA (7th ed.)

Spanbauer, S. (2004). Ultimate network security: How to install a firewall. PC World Philippines.

Cita Chicago (17th ed.)

Spanbauer, Scott. "Ultimate Network Security: How to Install a Firewall." PC World Philippines 2004.

Cita MLA (9th ed.)

Spanbauer, Scott. "Ultimate Network Security: How to Install a Firewall." PC World Philippines, 2004.