| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Develop Your Psychic Potential | 978-0-945353-19-5 (0-945353-19-7) | 1988 | |
| Wisdom Circles: A Guide to Self Discovery and Community Building in Small Groups | 978-0-7868-6276-4 (0-7868-6276-9) | 1998 | Charles Garfield |