POHLMANN. (2001). FIREWALL SYSTEM. MITP-VERLAG.
Chicago Style aipamenaPOHLMANN. FIREWALL SYSTEM. GERMANY: MITP-VERLAG, 2001.
MLA aipamenaPOHLMANN. FIREWALL SYSTEM. MITP-VERLAG, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
POHLMANN. (2001). FIREWALL SYSTEM. MITP-VERLAG.
Chicago Style aipamenaPOHLMANN. FIREWALL SYSTEM. GERMANY: MITP-VERLAG, 2001.
MLA aipamenaPOHLMANN. FIREWALL SYSTEM. MITP-VERLAG, 2001.