0 - Gnosis Summary
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Understanding Scientific Reasoning
Ronald N. Giere
The Philosophy of Logical Atomism
Bertrand Russell
Eternal Wisdom: The Esoteric Gnosis of Perennial Philosophy
Gwendolyn Taunton
Great books of the Western World - Volume 40
Encyclopaedia Britannica, Inc.
The a to Z of British Intelligence
Nigel West
The A to Z Guide Series (1)