| title | ISBN-13 (ISBN-10) | year of publication | |
|---|---|---|---|
| Herman Johannes Lam , the Life and Work of a Dutch Botanist. | 978-90-6203-545-8 (90-6203-545-0) | 1984 | |
| The Tropical Rain Forest: A First Encounter | 978-3-540-17996-2 (3-540-17996-8) | 1988 | |
| Tropical Rain Forest: A First Encounter | 978-0-387-17996-4 (0-387-17996-8) | 1988 |