Books about Unidentified flying objects (sorted by popularity)
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Displaying results 1–6
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The Report on Unidentified Flying Objects
Edward J. Ruppelt
852 downloads
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The World of Flying Saucers: A Scientific Examination of a Major Myth of the Space Age
Donald H. Menzel and Lyle Gifford Boyd
833 downloads
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The Flying Saucers are Real
Donald E. Keyhoe
483 downloads
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Federal Bureau of Investigation FOIA Documents - Unidentified Flying Objects
United States. Federal Bureau of Investigation
351 downloads
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USAF Fact Sheet 95-03
United States. Air Force
212 downloads
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The Flying Saucers are Real
Donald E. Keyhoe
209 downloads
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Displaying results 1–6
