| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| INFOTERRA network | 978-92-807-1363-3 (92-807-1363-9) | 1992 |
| Infoterra world directory of environmental expertise 1987 | 978-92-807-1152-3 (92-807-1152-0) | 1987 |
| Wastes and their treatment: Information sources and bibliography | 978-92-807-1156-1 (92-807-1156-3) | 1986 |