Blum, Richard Ubuntu Linux secrets / Richard Blum - Indianapolis, IN : Wiley Pub., c2009 - xxvii, 807 p. : ill. ; 24 cm. Includes index ISBN: 9780470395080 (pbk./website) 0470395087 Subjects--Uniform Titles: Ubuntu (Electronic resource)Linux Subjects--Topical Terms: Operating systems (Computers)