251 | General introduction to the Water Framework Directive |
252 | Pesticides in the aquatic environment 1995 |
253 | Garden with care and protect the environment |
254 | Navigations in the Anglian Region (NRA) |
255 | Lake restoration : the role of biomanipulation : a one day seminar held in the Broads 18th March 1993 : organised by the National Rivers Authority and the Broads Authority |
256 | Recreational waterways in the Anglian region : byelaws |
257 | Shrewsbury flood defences : the next steps |
258 | The Restoration of Vegetation on Saltmarshes |
259 | Lake Mutanda in the Kigezi District |
260 | A user's guide to the River Thames |
261 | The River Ogmore action plan support document |
262 | About the North West region : factfile |
263 | On duty round the clock : fact file |
264 | The National Rivers Authority : fact file |
265 | Evaluation of the Close Season in Canals |
266 | Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual) |
267 | Factors affecting the dispersal of coarse fish |
268 | Sustainability examples from the USA and Canada |
269 | Site supervision of the Beach Nourishment Scheme |
270 | Changes to the water abstraction licensing system |
271 | The Tame catchment (NRA Severn-Trent 67) |
272 | Determining The Freshwater Flow Needs Of Estuaries |
273 | The Trophic Diatom Index: A User's Manual; |
274 | River water quality in the Midlands 1997 |
275 | River water quality in the Midlands 1998 |