26 | The Nidd and Wharfe catchment (river factfiles) |
27 | Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region |
28 | River Great Ouse navigation : the Great Ouse your river for life |
29 | Take to the water : a beginner's guide to boating on inland waterways |
30 | The Don, Rother and Dearne catchment (river factfiles) |
31 | The Swale, Ure and Ouse catchment (river factfiles) |
32 | The use of herbicides in or near water |
33 | Policy and practice for the protection of groundwater : summary document |
34 | Charging for discharges scheme : guidance to the power generation industry |
35 | Where to fish on the River Wye and its tributaries : a guide to day ticket facilities |