APA (7th ed.) Citation

Urban, M. C., & Tiemann, B. (2003). Sams teach yourself FreeBSD in 24 hours. Sams Pub.

Chicago Style (17th ed.) Citation

Urban, Michael C., and Brian Tiemann. Sams Teach Yourself FreeBSD in 24 Hours. Indianapolis, IN: Sams Pub, 2003.

MLA (9th ed.) Citation

Urban, Michael C., and Brian Tiemann. Sams Teach Yourself FreeBSD in 24 Hours. Sams Pub, 2003.