APA (7th ed.) Citation

Matzan, J. (2007). The OpenBSD 4.0 crash course. O'Reilly.

Chicago Style (17th ed.) Citation

Matzan, Jem. The OpenBSD 4.0 Crash Course. Sebastopol, Calif.: O'Reilly, 2007.

MLA (8th ed.) Citation

Matzan, Jem. The OpenBSD 4.0 Crash Course. O'Reilly, 2007.

Warning: These citations may not always be 100% accurate.