APA (7th ed.) Citation

Membrey, P., Verhoeven, T., & Angenendt, R. (2009). The definitive guide to CentOS (1st ed. 2009.). Apress.

Chicago Style (17th ed.) Citation

Membrey, Peter, Tim Verhoeven, and Ralph Angenendt. The Definitive Guide to CentOS. 1st ed. 2009. Berkeley, CA: Apress, 2009.

MLA (9th ed.) Citation

Membrey, Peter, et al. The Definitive Guide to CentOS. 1st ed. 2009. Apress, 2009.