Dyfyniad APA

Hansteen, P. N. M. (2015). The book of PF: A no-nonsense guide to the OpenBSD firewall (Third edition.). No Starch Press.

Dyfyniad Arddull Chicago

Hansteen, Peter N. M. The Book of PF: A No-nonsense Guide to the OpenBSD Firewall. Third edition. San Francisco, [California]: No Starch Press, 2015.

Dyfyniad MLA

Hansteen, Peter N. M. The Book of PF: A No-nonsense Guide to the OpenBSD Firewall. Third edition. No Starch Press, 2015.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.