| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Enneagram of Society: Healing the Soul to Heal the World | 978-0-89556-159-6 (0-89556-159-X) | 2005 |
| Ennea-type Structures: Self-Analysis for the Seeker | 978-0-89556-063-6 (0-89556-063-1) | 1991 |
Claudio Naranjo · Claudio Naranjo MD · M.C. · M.N · M.D. C.