LPI Linux certification - in a nutshell: a desktop quick reference: pass the LPIC-1 and LPIC-2 exams, 2nd Edition. - Steven Pritchard; Bruno Gomes Pessanha; Nicolai Langfeldt; James Stanger; Jeffrey Dean (O'Reilly, 2006)

LPI Linux Certification in a Nutshell - a Desktop Quick Reference (3. ed.). - Adam Haeder; Stephen Addison Schneiter; Bruno Gomes Pessanha; James Stanger (O'Reilly, 2010)