APA (7th ed.) Citation

Hill, B., Helmke, M., Graner, A., & Burger, C. (2011). The Official Ubuntu Book, Sixth Edition (6th edition.). Prentice Hall.

Chicago Style (17th ed.) Citation

Hill, Benjamin, Matthew Helmke, Amber Graner, and Corey Burger. The Official Ubuntu Book, Sixth Edition. 6th edition. Prentice Hall, 2011.

MLA (9th ed.) Citation

Hill, Benjamin, et al. The Official Ubuntu Book, Sixth Edition. 6th edition. Prentice Hall, 2011.