| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Action, Fun & Tiefgang. Kreative und herausfordernde Jugend-Events planen | 978-3-89490-272-8 (3-89490-272-8) | |||
| Impact Sports | 978-0-310-20130-4 (0-310-20130-6) | 1997 | Bo Boshers | |
| Programming with Purpose | 978-0-310-20129-8 (0-310-20129-2) | 1997 | Kim Anderson | |