| 6251 | Water plants : their function and management |
|---|
| 6252 | Review of Sea Trout Fecundity
|
|---|
| 6253 | A review of available information sources for assessing the hazards and risks of chemical substances in the environment. Final report : recommendations for the acquistion of certain sources of environmental data |
|---|
| 6254 | A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study |
|---|
| 6255 | Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy |
|---|
| 6256 | Road transport and the environment |
|---|
| 6257 | Direct toxicity assessment proficiency scheme (DTAPS) : Document 1 : Issue 5 |
|---|
| 6258 | Direct toxicity assessment proficiency scheme (DTAPS) : Document 3 : Issue 10 |
|---|
| 6259 | Ecotoxicology : a report of the NRA R and D Ecotoxicology Group |
|---|
| 6260 | Ecotoxicology : new approaches |
|---|
| 6261 | Investigating Links Between Bacterial Exotoxins and Unexplained Fish Kills: Phase 3 |
|---|
| 6262 | Hydrodat : groundwater monitoring database system. Guidelines |
|---|
| 6263 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
|---|
| 6264 | Analysis of methyl tertiary-butyl ether (MTBE) and other petroleum oxygenates in water |
|---|
| 6265 | Hydrometric asset condition survey action plan 1998 - 2001 : annex 1 |
|---|
| 6266 | The results of fish telemetry trails in the river Tawe estuary, 1991 |
|---|
| 6267 | Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd |
|---|
| 6268 | Compact airborne spectrographic imager : CASI |
|---|
| 6269 | Aircraft utilisation study |
|---|
| 6270 | Effective flood warning the Australian way : the Winston Churchill Travelling Fellowship visit to Australia and New Zealand 23 October - 27 November 1994 |
|---|
| 6271 | A brief guide to the medway |
|---|
| 6272 | A brief guide to the thames |
|---|
| 6273 | Aquatic eutrophication (leaflet) |
|---|
| 6274 | Autumn 2000 floods review regional report : South West region |
|---|
| 6275 | Bathing water quality : fact sheet (bilingual) : Ansawdd dwr ymdrochi : taflen ffeithiau |
|---|
