Cita APA (7a ed.)

Helmke, M., Hudson, A., & Hudson, P. (2016). Ubuntu unleashed (2016 edition.). Sams.

Cita Chicago Style (17a ed.)

Helmke, Matthew, Andrew Hudson, y Paul Hudson. Ubuntu Unleashed. 2016 edition. Indianapolis, Indiana: Sams, 2016.

Cita MLA (8a ed.)

Helmke, Matthew, et al. Ubuntu Unleashed. 2016 edition. Sams, 2016.