- Author: John A. Keel
- Language: English
- Year: 2014
- Author: Larry C. Brubaker
- Language: English
- Year: 20123
- Author: Kevin D Randle
- Language: English
- Year: 2007
- Author: KANON Gregory M.
- Language: English
- Year: 1997
- Author: Mary S. Rustad (ed.)
- Language: English
- Year: 1999
- Author: Daniel J. Wood
- Language: English
- Year: 2013
Our Haunted Planet
epub
- Author: John A. Keel
- Language: English
- Year: 1971
Monsters Among Us
epub
- Author: Brad Steiger
- Language: English
- Year: 2007
- Author: Brad Steiger
- Language: English
- Year: 1995