Gale Research Inc · Prometheus
| title | ISBN-13 | year of publication |
|---|---|---|
| An Anthology of Atheism and Rationalism | 978-0-87975-256-9 | 1980 |
| Encyclopedia of Hoaxes | 978-0-8103-8414-9 | 1993 |
| The Encyclopedia of the Paranormal | 978-1-57392-021-6 | 1996 |
| The Encyclopedia of Unbelief, Volumes I and II | 978-0-87975-307-8 | 1985 |
| The Sorcerer of Kings | 978-0-87975-863-9 | 1993 |