Kriya Source Publishing · Penguin Books Ltd
| title | ISBN-13 (ISBN-10) | year of publica- tion | |
|---|---|---|---|
| Footsteps to Freedom | 978-0-14-303272-4 (0-14-303272-0) | 2006 | |
| Footsteps to Freedom: Four Spiritual Masters of Kriya Yoga and a Beginner | 978-3-9522761-0-5 (3-9522761-0-3) | 2003 |