Hill, B. M. (2011). The official ubuntu book (6th ed.). Prentice Hall.
芝加哥风格引文Hill, Benjamin Mako. The Official Ubuntu Book. 6th ed. Upper Saddle River, NJ: Prentice Hall, 2011.
MLA引文Hill, Benjamin Mako. The Official Ubuntu Book. 6th ed. Prentice Hall, 2011.
警告：这些引文格式不一定是100％准确.