1 | Contaminants entering the sea : data appendix : data on contaminant loads entering the seas around England and Wales for the years 1990-1993 |
2 | Project record for the review and statistical analysis of the baseline coastal waters survey |
3 | The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey |
4 | River quality in England and Wales : a report of the 1990 survey |
5 | River Axe Fish Study - Evaluation of Fish Movements in the Estuary |
6 | The 1990 river and estuary classification survey of England and Wales |