Principia Mathematica Vol 2.
Bertrand Russell & Alfred North Whitehead
Wittgenstein After His Nachlass
Nuno Venturinha
The Secret World of Weather: 'Makes You Look at Your Environment ...
Tristan Gooley
An Introduction to Theories of Learning
B. R. Hergenhahn & Matthew H. Olson
Sacred Geometry and Numerology
Moustafa Gadalla
Der Magnetmotor: Freie Energie selber bauen
Patrick Weinand-Diez & Sonja Weinand