| 4226 | Taw/Torridge Estuary catchment management plan : consultation report : August 1993 |
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| 4227 | Waterways Breeding Bird Survey Pilot Study 1998: Adaptation of BBS Census Methods to Rivers and Canals |
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| 4228 | The Lowermoor environment report |
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| 4229 | Where to fish on the River Wye and its tributaries : a guide to day ticket facilities |
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| 4230 | River Irwell catchment management plan : water quality supplement |
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| 4231 | Switch mechanisms between alternative stable states in freshwater communities (01/574/1/A) |
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| 4232 | River habitats in England and Wales : a national overview : river habitat survey report no 1 |
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| 4233 | Effects of Canoeing on Fish Stocks and Angling |
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| 4234 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
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| 4235 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire; |
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| 4236 | A Review of Grayling Ecology, Status and Management Practice Recommendations for Future Managemetn in England and Wales |
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| 4237 | Guidelines on statutory returns : Freshwater Fish Directive |
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| 4238 | Teddington flow survey 1989 |
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| 4239 | Assessing the impact of dewatering on water resources |
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| 4240 | The use and design of oil separators in surface water drainage systems |
|---|
| 4241 | The utilisation of stick-pile otter holts in south east Wales |
|---|
| 4242 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
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| 4243 | Evaluation of FRONTIERS accumulation forecasts in the NRA Thames and North West regions : final report of the Joint Met |
|---|
| 4244 | River Usk barrage position statement, 4th August 1993 |
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| 4245 | The River Ash : enhancement project |
|---|
| 4246 | UK Sewage Sludge Survey |
|---|
| 4247 | Substitute Liquid Fuels Used In Cement Kilns - Life Cycle Analysis |
|---|
| 4248 | Cley sea defences |
|---|
| 4249 | Environmental pilot audit : National Rivers Authority Anglian region central area : Brampton Huntingdon |
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| 4250 | Improving the Environment Agency's contribution to wetland bird populations |
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