Passport to Magonia: From...
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Operation Trojan Horse
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The Report on Unidentified...
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The Humanoids
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The Cosmic Pulse of Life
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UFO trek
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UFO's from behind the Iron...
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Ufology
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The UFO Controversy in America
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UFO's: What on Earth Is...
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Flying Saucers....Serious...
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Flying saucers from outer...
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UFO's Past Pres & Future
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Gods of Aquarius
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Flying saucers and the three...
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Aliens from Space
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Gods and Spacemen in the...
Walter Raymond Drake
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Beyond Earth: Man's Contact...
Ralph Blum,
Judy Blum
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Final report of the...
Daniel S. Gillmor,
Edward Uhler Condon
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Gods and spacemen in Greece...
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The Eighth Tower
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UFOs Explained
Philip J Klass
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Other worlds, other universes...
Brad Steiger (Compiled by),
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Final report of the...
University of Colorado (Boulder campus),
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