Helmke, Matthew Ubuntu unleashed / by Matthew Helmke, Andrew Hudson and Paul Hudson - 2012 ed. - Indianapolis : SAMS , 2012. - xxiv,822p. : table,fig. ; 23cm. Includes index. ISBN: 9780672335785 USD49.99 Subjects--Topical Terms: OPERATING SYSTEMS( COMPUTER) Dewey Class. No.: 005.432UBU HEL/U