251 | Pesticides in the aquatic environment 1995 |
252 | Garden with care and protect the environment |
253 | Navigations in the Anglian Region (NRA) |
254 | Canoeist guide to the River Severn |
255 | Investigation to determine if the soakaway from the Stowford Farm caravan site is having an impact on the biological community of the Colam stream |
256 | 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 |
257 | Recreational waterways in the Anglian region : byelaws |
258 | Lake Mutanda in the Kigezi District |
259 | A user's guide to the River Thames |
260 | The River Ogmore action plan support document |
261 | About the North West region : factfile |
262 | On duty round the clock : fact file |
263 | The National Rivers Authority : fact file |
264 | Evaluation of the Close Season in Canals |
265 | Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual) |
266 | Sustainability examples from the USA and Canada |
267 | Site supervision of the Beach Nourishment Scheme |
268 | Changes to the water abstraction licensing system |
269 | The Tame catchment (NRA Severn-Trent 67) |
270 | Fishery survey of the Doniford Stream 1994 |
271 | Fishery survey of the Horner Water catchment |
272 | Fishery survey of the River Yeo catchment |
273 | Fishery survey of the Congresbury Yeo, 1994 |
274 | Fishery survey of the River Isle catchment |
275 | Determining The Freshwater Flow Needs Of Estuaries |