| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| ECOLOGIA GENERAL | Tapa blanda | 978-84-282-0730-0 (84-282-0730-5) | 1984 | L.L. WOLF |
| General ecology | Paperback | 978-0-03-019801-4 (0-03-019801-1) | 1979 | |
| General ecology | Hardcover | 978-0-03-086218-2 (0-03-086218-3) | 1973 | |