Encyclopedia of Survey Research Methods
Paul J. Lavrakas
The Joyous Cosmology
Alan W. Watts
Agile Testing: A Practical Guide for Testers and Agile Teams
Lisa Crispin & Janet Gregory
The Communist Manifesto
Karl Marx & Friedrich Engels
Matrix Algebra with Mathematica®
Cesar Perez Lopez
Establishing Boundaries
F. J. E. Boddens Hosang