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Challenge to Science: The UFO Enigma Jacques Vallee PB Ballantine (1977)
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Flying Saucers a Challenge to Science by Jacques & Janine Vallee (1967) VG+ Cond
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From Protest to Challenge A History of African Politics in South Africa volume 4
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The Challenge of Politics : An Introduction to Political Science by Douglas...
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The River Runs Black: The Environmental Challenge to China's Future (Coun - GOOD
The River Runs Black: The Environmental Challenge to China's Future (Coun - GOOD

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FLYING SAUCERS A CHALLENGE TO SCIENCE by Jacques Vallee (1968) Ace paperback
FLYING SAUCERS A CHALLENGE TO SCIENCE by Jacques Vallee (1968) Ace paperback

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The Learning Challenge: How to Guide You - Nottingham, James A.
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Challenge Everything: An Extinction Rebellion Youth Guide to Saving the - GOOD

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Seaweeds of the Pacific Coast: Common Marine Algae from Alaska to Ba - VERY GOOD

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1974 Science News Magazine - The Challenge to Science: A Crisis of Reason
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Guide to Marine Invertebrates: Alaska to Baja California - Paperback - GOOD
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Challenge to Education II: Technical Essays on Creationism Conf 1974 Walter Lang
Challenge to Education II: Technical Essays on Creationism Conf 1974 Walter Lang

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Adventures in Engineering for Kids: 35 Challenges to Design the Future - - GOOD

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Television: A Challenge To The Psychoanalytic Establishment
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The French Paracelsians : The Chemical Challenge to Medical and Scientific...
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The Challenge of Politics: An Introduction To Political Science 6th Ed. By Simon
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Jihad vs. McWorld: Terrorism's Challenge to Democracy - Paperback - VERY GOOD
Jihad vs. McWorld: Terrorism's Challenge to Democracy - Paperback - VERY GOOD

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Never Give Up!: Relentless Determination to Overcome Life's Challenges by Meyer,
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The Challenge to Be Great : On Becoming Exceptional: SSM Health C
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The Compassionate Mind: A New Approach to Life's Challenges - VERY GOOD
The Compassionate Mind: A New Approach to Life's Challenges - VERY GOOD

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Just Action: How to Challenge - Hardcover, by Rothstein Leah; Rothstein - Good
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The Challenge of Politics : An Introduction to Political Science
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To Challenge Heaven by David Weber: New
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Daw Science Fiction Book No. 7 TO CHALLENG CHAOS by Brian M. Stableford 1972
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A Challenge To Einstein: Rethinking Relativity
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The River Runs Black: The Environmental Challenge To China's Future
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