Andrés, S., & Kenyon, B. (2004). Security sage's guide to hardening the network infrastructure. Syngress.
Chicago Style (17th ed.) ZitazioaAndrés, Steven, eta Brian Kenyon. Security Sage's Guide to Hardening the Network Infrastructure. Rockland, MA: Syngress, 2004.
MLA (9th ed.) ZitazioaAndrés, Steven, eta Brian Kenyon. Security Sage's Guide to Hardening the Network Infrastructure. Syngress, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.