J. Allen Hynek

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The Edge of Reality: Two Scientists Evaluate What We Know of the UFO Phenomenon (MUFON)
Hynek, J. Allen; Vallee, Jacques

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The UFO Experience: Evidence Behind Close Encounters, Project Blue Book, and the Search for Answers (MUFON)
Hynek, J. Allen

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� 13.56

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Night Siege: Hudson Valley UFO Sightings
Hynek, J. Allen; Imbrogno, Philip J.; Pratt, Bob

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� 11.97

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Unidentified Flying Object Experience: A Scientific Inquiry
Hynek, J. Allen

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� 30.78

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The Hynek UFO Report
Hynek, J. Allen

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� 23.69

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Hynek UFO Report
Vallee, Jacques

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� 7.62

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The Ufo Experience: A Scientific Inquiry (COLLECTOR'S LIBRARY OF THE UNKNOWN)
Hynek, Joseph Allen

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� 14.43

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Ufo Experience: A Scientific Inquiry
Hynek, Joseph Allen

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� 20.69

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