Traces the history of UFO sightings and describes the general characteristics and official explanations of encounters with unidentified flying objects.
- ISBN10 0516462180
- ISBN13 9780516462189
- Publish Date 1 April 1989 (first published 1 January 1989)
- Publish Status Out of Print
- Out of Print 7 August 2012
- Publish Country US
- Imprint Children's Press(CT)
- Format Paperback (US Trade)
- Language English