E. Vogel ยท Erhard, Ph.D. Vogel
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Journey into Your Center: A Guide to Flourishing in the New Millennium | 978-1-892484-00-0 (1-892484-00-5) | 2001 |
| Journey Into Your Center, Second Edition | 978-1-892484-05-5 (1-892484-05-6) | 2002 |
| The Stress Release Response Meditation: 7 Steps to Triumph Over Stress | 978-1-892484-04-8 (1-892484-04-8) | 2000 |