| 251 | The Trophic Diatom Index: A User's Manual; |
|---|
| 252 | Safeguarding the lower bristol avon - public consultation |
|---|
| 253 | Devon area internal report - the kingsbridge estuary - survey of the benthic microinvertebrate infauna (october 1990) for the proposed classification of estuaries in the south western region |
|---|
| 254 | Fishery survey of the Horner Water catchment |
|---|
| 255 | Endocrine Disruption in the Marine Environment |
|---|
| 256 | Determining The Causes Of 'Apparent Eutrophication' Effects |
|---|
| 257 | Duties and powers of the Environment Agency |
|---|
| 258 | A brief guide to the thames |
|---|
| 259 | Fishery survey of the River Isle catchment |
|---|
| 260 | Phosphate in the cut-off channel |
|---|
| 261 | Determining The Freshwater Flow Needs Of Estuaries |
|---|
| 262 | The Ecology of Four Scarce Wetland Molluscs |
|---|
| 263 | Fishery survey of the River Axe catchment |
|---|
| 264 | Synoptic State of the Environment Monitoring |
|---|
| 265 | Guide to the Medway navigation 1994 |
|---|
| 266 | Recreational waterways in the anglian region |
|---|
| 267 | The River Severn (NRA Severn-Trent 65) |
|---|
| 268 | Navigations in the Anglian Region (NRA) |
|---|
| 269 | The Recreational Use of Floodbanks Phase 1 |
|---|
| 270 | On duty round the clock : fact file |
|---|
| 271 | Canoeist guide to the River Severn |
|---|
| 272 | Whitacre-Shustoke Reservoir improvements. The sedimentary phosphorus content on the Lower Shustoke Reservoir |
|---|
| 273 | 1966 - The IBP compound when the team first arrived at Lake George in December 1966. |
|---|
| 274 | Clouding: the issue. An appraisal of the effects of turbidity in aquatic systems |
|---|
| 275 | The Possible effects on migratory fish in the River Dee of increased water abstraction |
|---|
