APA (7th ed.) Citation

Thomas, K., Channelle, A., & Sicam, J. (2009). Beginning Ubuntu Linux: From Novice to Professional (Fourth Edition.). Apress.

Chicago Style (17th ed.) Citation

Thomas, Keir, Andy Channelle, and Jaime Sicam. Beginning Ubuntu Linux: From Novice to Professional. Fourth Edition. Berkeley, CA: Apress, 2009.

MLA (8th ed.) Citation

Thomas, Keir, et al. Beginning Ubuntu Linux: From Novice to Professional. Fourth Edition. Apress, 2009.