The Gnostic Dialogue: The Early Church and the Crisis of Gnosticism
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33 Questions About American History You're Not Supposed to Ask
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A Sociable God
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Doors in the Walls of the World: Signs of Transcendence in the ...
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An Introduction to the Theory of the Riemann Zeta-Function
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OPERATION TROJAN HORSE: The Classic Breakthrough Study of UFOs
John A. Keel