APA (7th ed.) Citation

Hope, P., Potter, B., & Korff, Y. (2005). Mastering FreeBSD and OpenBSD Security (1st edition.). O'Reilly Media, Inc..

Chicago Style (17th ed.) Citation

Hope, Paco, Bruce Potter, and Yanek Korff. Mastering FreeBSD and OpenBSD Security. 1st edition. O'Reilly Media, Inc., 2005.

MLA (9th ed.) Citation

Hope, Paco, et al. Mastering FreeBSD and OpenBSD Security. 1st edition. O'Reilly Media, Inc., 2005.