Essential System Administration
Æleen Frisch
Red Hat Enterprise Linux 6 Administration
Sander van Vugt
The Shellcoder's Handbook
Chris Anley & John Heasman & Felix Lindner & Gerardo Richarte
Red Hat Enterprise Linux 7: Desktops and Administration
Richard Petersen
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain