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Browsing subject area: Unidentified flying objects (Exclude extended shelves)
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Unidentified flying objects

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Broader terms:Narrower terms:Used for:
  • Flying saucers
  • UFOlogy
  • UFO phenomena
  • Saucers, Flying
  • UAPs (Unexplained aerial phenomena)
  • Unexplained aerial phenomena
  • UFOs
Filed under: Unidentified flying objects Filed under: Unidentified flying objects -- Early works to 1800 Filed under: Unidentified flying objects -- Sightings and encounters -- Fiction Filed under: Human-alien encounters -- Fiction

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