The Shellcoder's Handbook
Chris Anley & John Heasman & Felix Lindner & Gerardo Richarte
Using and Administering Linux: Volume 1
David Both
Red Hat Enterprise Linux 6 Administration
Sander van Vugt
Shell Scripting
Steve Parker
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain