Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Unidentified flying objects 52 Unidentified flying objects in popular culture 1 Unidentified flying objects -- Religious aspects. 2 Unidentified flying objects -- Research. 1 Unidentified flying objects -- Research -- United States -- History. 1 Unidentified flying objects -- Sightings and encounters 16 SEE ALSO narrower term: Human-alien encounters 650 SEE ALSO: Men in black (UFO phenomenon) 7 Unidentified flying objects -- Sightings and encounters -- Arizona -- Phoenix. 2 Unidentified flying objects -- Sightings and encounters -- Maine. 1 Unidentified flying objects -- Sightings and encounters -- Michigan. 1 Unidentified flying objects -- Sightings and encounters -- Nevada. 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >