Redesigning the Future: A Systems Approach to Societal Problems
Russell Lincoln Ackoff
Genius of the Transcendent: Mystical Writings of Jakob Boehme
Jakob Boehme
A Survey of Metaphysics
E. Jonathan Lowe
Measure Theory
Paul R. Halmos
Im Weinberg des Textes: als das Schriftbild der Moderne entstand ...
Ivan Illich
An Illustrated Encyclopaedia of Mysticism
John Ferguson