| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Das Tao von Montessori | 978-3-936855-65-4 (3-936855-65-X) | 2008 | |
| The Tao of Montessori | 978-0-595-35982-0 (0-595-35982-5) | 2005 | |
| The Tao of Montessori: Reflections on Compassionate Teaching | 978-1-58348-298-8 (1-58348-298-9) | 2007 |
Arbor · iUniverse · iUniverse, Inc.