L a · Leonard A. · Leonard R.N. Ashley
Barricade Books · Robson Books Ltd
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Complete Book of Numerology | 978-1-56980-270-0 (1-56980-270-X) | 2005 |
| The Complete Book of Devils and Demons | 978-1-86105-041-0 (1-86105-041-0) | 1998 |