APA (7th ed.) Zitazioa
Behrens, T. (2005). Cisco Pix firewalls: Configure, manage and troubleshoot. Syngress Publishing.
Chicago Style (17th ed.) Zitazioa
Behrens, Thorsten. Cisco Pix Firewalls: Configure, Manage and Troubleshoot. Rockland, MA: Syngress Publishing, 2005.
MLA (9th ed.) Zitazioa
Behrens, Thorsten. Cisco Pix Firewalls: Configure, Manage and Troubleshoot. Syngress Publishing, 2005.
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