| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Another World: Wolfli, Aloise, Muller | 978-0-906474-00-6 (0-906474-00-0) | 1978 | Christopher Carrell |
| They Know Us Better Than We Know Ourselves: The History and Politics of Alien Abduction | 978-0-8147-9922-2 (0-8147-9922-1) | 2007 | |