51 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
|
52 | Landfill and the water environment : NRA position statement |
53 | Charging for discharges scheme : guidance to the agricultural industry |
54 | Snapshots of the environment : integrated river basin management |
55 | Water from the River Dee : a working partnership |
56 | River quality in England and Wales : a report of the 1990 survey |
57 | Snapshots of the environment : understanding coastal water quality |
58 | Policy and practice for the protection of groundwater : regional appendix Welsh region |
59 | Sustainable urban drainage : an introduction : protecting the quality of our environment |
60 | Snapshots of the environment : managing our freshwater fisheries |
61 | The National Groundwater and Contaminated Land Centre (NGWCLC) |
62 | Contribution of small streams to potential fish production in the Conwy catchment |
63 | Policy and practice for the protection of floodplains |
64 | The Use of a Hydroacoustic Counter for Assessing Salmon Stocks |
65 | Pesticides in the aquatic environment 1997 : executive summary |
66 | Snapshots of the environment : a new environmental approach |
67 | The utilisation of stick-pile otter holts in south east Wales |
68 | The River Tywi catchment management plan : action plan (bilingual) |
69 | A strategy for the management of salmon in England and Wales |
70 | Water quality 2000 : a strategy for the water quality function |
71 | Wetlands for Wales : a strategy for the third millenium |
72 | The Occurrence of Sheep Dip Pesticides in Environmental Waters June 1997 |
73 | Policy and practice for the protection of groundwater |
74 | Water resources for the future : annual review 2003 |
75 | The National Centre for Environmental Data and Surveillance : business plan 1999/2000 |