Unleashed Ser.: Red Hat Linux 6 by David Pitts and William Ball

Red Hat Linux 6 Unleashed by Bill Ball

Red Hat Linux 7 Unleashed Compact Disc William Ball

Red Hat Linux 6 Unleashed by David Pitts, William Ball (Paperback, 1999, SAMS)

Red Hat Linux 9 Unleashed Compact Disc Billy, Duff, Hoyt Ball

Red Hat® Linux® 9 Bible Compact Disc Christopher Negus