| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| 40-Day Journey with Dietrich Bonhoeffer | 978-0-8066-5368-6 (0-8066-5368-X) | 2007 |
| How to Keep a Spiritual Journal: A Guide to Journal Keeping for Inner Growth and Personal Discovery | 978-0-8066-4357-1 (0-8066-4357-9) | 2002 |
R.K. · Rem Kohlhaas · Rem Koolhaas · Rene Klösch · Ron Kalish · Ron Kowalke