Discusses sightings of UFO's and encounters with creatures purportedly from those space crafts.
- ISBN10 0671299514
- ISBN13 9780671299514
- Publish Date 1 May 1979 (first published 12 December 1978)
- Publish Status Out of Print
- Out of Print 22 March 2011
- Publish Country US
- Publisher Simon & Schuster
- Imprint Pocket Books
- Format Paperback (US Trade)
- Language English