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
361 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
276 downloads
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The Flying Saucers are Real
Donald E. Keyhoe
255 downloads
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Federal Bureau of Investigation FOIA Documents - Unidentified Flying Objects
United States. Federal Bureau of Investigation
159 downloads
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USAF Fact Sheet 95-03
United States. Air Force
92 downloads
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The Flying Saucers are Real
Donald E. Keyhoe
69 downloads
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Displaying results 1–6
