| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Conservation for Development | 978-2-88032-003-4 (2-88032-003-8) | 1980 |
| Ecology of Man in the Tropical Environment | 978-2-88032-054-6 (2-88032-054-2) | 1980 |
International Union for Conservation of Nature and Natural Resources