Horst Kehlen · Horst Klein · Horst Kollan
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| An African Journal | 978-0-620-18153-2 (0-620-18153-2) | 1994 | |
| Elephants For Africa | 978-0-620-26323-8 (0-620-26323-7) | 2000 | Randall Jay Moore · Christopher Munnion |