Cita APA (7a ed.)
Behrens, T. (2005). Cisco Pix firewalls: Configure, manage and troubleshoot. Syngress Publishing.
Cita Chicago Style (17a ed.)
Behrens, Thorsten. Cisco Pix Firewalls: Configure, Manage and Troubleshoot. Rockland, MA: Syngress Publishing, 2005.
Cita MLA (9a ed.)
Behrens, Thorsten. Cisco Pix Firewalls: Configure, Manage and Troubleshoot. Syngress Publishing, 2005.
Precaución: Estas citas no son 100% exactas.