Cita APA (7a ed.)

Ben Hamou, A. (2007). Practical Ruby for system administration (1st ed. 2007.). Apress ; Distributed by Springer-Verlag New York.

Cita Chicago Style (17a ed.)

Ben Hamou, Andre. Practical Ruby for System Administration. 1st ed. 2007. Berkeley, CA : New York: Apress ; Distributed by Springer-Verlag New York, 2007.

Cita MLA (9a ed.)

Ben Hamou, Andre. Practical Ruby for System Administration. 1st ed. 2007. Apress ; Distributed by Springer-Verlag New York, 2007.