4426 | Where to fish on the River Wye and its tributaries : a guide to day ticket facilities |
4427 | River Irwell catchment management plan : water quality supplement |
4428 | River habitats in England and Wales : a national overview : river habitat survey report no 1 |
4429 | Effects of Canoeing on Fish Stocks and Angling |
4430 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
4431 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire; |
4432 | A Review of Grayling Ecology, Status and Management Practice Recommendations for Future Managemetn in England and Wales |
4433 | Guidelines on statutory returns : Freshwater Fish Directive |
4434 | Teddington flow survey 1989 |
4435 | Assessing the impact of dewatering on water resources |
4436 | The use and design of oil separators in surface water drainage systems |
4437 | The utilisation of stick-pile otter holts in south east Wales |
4438 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
4439 | Evaluation of FRONTIERS accumulation forecasts in the NRA Thames and North West regions : final report of the Joint Met |
4440 | River Usk barrage position statement, 4th August 1993 |
4441 | The River Ash : enhancement project |
4442 | UK Sewage Sludge Survey |
4443 | Substitute Liquid Fuels Used In Cement Kilns - Life Cycle Analysis |
4444 | Cley sea defences |
4445 | Environmental pilot audit : National Rivers Authority Anglian region central area : Brampton Huntingdon |
4446 | Improving the Environment Agency's contribution to wetland bird populations |
4447 | The Waterways Bird Survey |
4448 | Groundwater-surface Water Interactions in the Hyporheic Zone |
4449 | Time of travel on the River Lee under high and medium flow : appendix b : time of travel on the small River Lee |
4450 | The management of the water resources of the Little Ouse groundwater unit |