The Secrets of Ancient Geometry - And Its Uses Vol.1
Tons Brunes
General Relativity and Gravitation: One Hundred Years After ...
Alan Held & International Society On General Relativity & Gravitation
Constantine Porphyrogenitus and His World
Arnold Toynbee
Spirituality and Hermetics
Frank Mildenberger
A Monk in the World
Ken Wilber & Wayne Teasdale
Journal of World-Systems Research