51 | Pollution control on the River Alt |
52 | The river Aire conservation within the catchment : a summary of survey methods and information held on the wildlife of the river Aire catchment |
53 | Stock assessment review on the River Teign |
54 | Fish found in the tidal Thames |
55 | Stock assessment review on the River Dart |
56 | Safeguarding the lower bristol avon - public consultation |
57 | Beneath the town : safeguarding Bodmin from flooding |
58 | Canoeist guide to the River Severn |
59 | Investigation to determine if the soakaway from the Stowford Farm caravan site is having an impact on the biological community of the Colam stream |
60 | 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 |
61 | The River Ogmore action plan support document |
62 | The Tame catchment (NRA Severn-Trent 67) |
63 | Fishery survey of the Doniford Stream 1994 |
64 | Fishery survey of the Horner Water catchment |
65 | Fishery survey of the River Yeo catchment |
66 | Fishery survey of the Congresbury Yeo, 1994 |
67 | Fishery survey of the River Isle catchment |
68 | River water quality in the Midlands 1997 |
69 | River water quality in the Midlands 1998 |
70 | Study of the River Stour, Kent |
71 | The River Thame : catchment review : march 1996 |
72 | Phosphate in the cut-off channel |
73 | Guide to the Medway navigation 1994 |
74 | The River Lark project Final Report |
75 | The Ely Ouse Essex water transfer scheme |