Hill, B. M. (2011). The official ubuntu book (6th ed.). Prentice Hall.
Cita Chicago (17th ed.)Hill, Benjamin Mako. The Official Ubuntu Book. 6th ed. Upper Saddle River, NJ: Prentice Hall, 2011.
Cita MLA (8th ed.)Hill, Benjamin Mako. The Official Ubuntu Book. 6th ed. Prentice Hall, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.