176 | Humber estuary : state of the environment 1998 |
177 | Invertebrate animals of the tidal Thames |
178 | Marine safety in the Harbour of Rye |
179 | Drought in the South : in depth |
180 | Safeguarding the lower bristol avon - public consultation |
181 | Synoptic State of the Environment Monitoring |
182 | Evaluating The Benefits Of Hydrometric Networks |
183 | Pesticides in the aquatic environment 1995 |
184 | Garden with care and protect the environment |
185 | Navigations in the Anglian Region (NRA) |
186 | Canoeist guide to the River Severn |
187 | 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 |
188 | Lake Mutanda in the Kigezi District |
189 | A user's guide to the River Thames |
190 | About the North West region : factfile |
191 | On duty round the clock : fact file |
192 | The National Rivers Authority : fact file |
193 | Evaluation of the Close Season in Canals |
194 | Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual) |
195 | Sustainability examples from the USA and Canada |
196 | Changes to the water abstraction licensing system |
197 | Determining The Freshwater Flow Needs Of Estuaries |
198 | The Trophic Diatom Index: A User's Manual; |
199 | Duties and powers of the Environment Agency |
200 | Biological investigation of the Common Lake Stream |