| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Biological Management and Conservation | Paperback | 978-0-412-11330-7 | 1973 | |
| Biological Management and Conservation: Ecological Theory, Application and Planning | " | 978-0-412-21480-6 | 1978 | |
| Ecological Stability | Hardcover | 978-0-412-12610-9 | 1974 | Mark Williamson |
| Ecological Stability | Paperback | 978-0-470-89648-8 | 1974 | M. H. Williamson |