Helmke, M. (2012). Ubuntu unleashed (2012 edition.). Sams.
Chicago Style (17th ed.) CitationHelmke, Matthew. Ubuntu Unleashed. 2012 edition. Indianapolis, Ind: Sams, 2012.
MLA (8th ed.) CitationHelmke, Matthew. Ubuntu Unleashed. 2012 edition. Sams, 2012.
Warning: These citations may not always be 100% accurate.