Cita APA

Ziegler, R. (1999). Linux firewalls. Indianapolis, Ind.: New Riders ; Prentice Hall.

Chicago Style Citation

Ziegler, Robert. Linux Firewalls. Indianapolis, Ind.: New Riders ; Prentice Hall, 1999.

Cita MLA

Ziegler, Robert. Linux Firewalls. Indianapolis, Ind.: New Riders ; Prentice Hall, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.