Cita APA (7th ed.)

Edwards, J., Bramante, R., & Martin, A. (2006). Nortel guide to VPN routing for security and VoIP. Indianapolis, IN : Wiley Pub..

Cita Chicago (17th ed.)

Edwards, James, Richard Bramante, i Al Martin. Nortel Guide to VPN Routing for Security and VoIP. Indianapolis, IN : Wiley Pub., 2006.

Cita MLA (9th ed.)

Edwards, James, et al. Nortel Guide to VPN Routing for Security and VoIP. Indianapolis, IN : Wiley Pub., 2006.