51 | The Waterways Bird Survey |
52 | The management of the water resources of the Little Ouse groundwater unit |
53 | The management of the water resources of the Lark groundwater unit |
54 | An aerial photograph of The Ferry House prior to the construction of The Pearsall Building |
55 | The Thames navigation : charting the future : a consultation document issued by the NRA Thames Region |
56 | The importance of sediment release of phosphorus in the restoration of the Norfolk Broads |
57 | The influx of black magnetic spherules to the lakes of the English Lake District |
58 | The effects of flow reduction in the River Dee on the aquatic environment |
59 | The water quality of the Humber Estuary 1992 : a report from The Humber Estuary Committee |
60 | A guide to the interpretation of the electron micrographs contained within the "Ken Clarke Collection" |
61 | Domesday to the dawn of the new millennium : 900 years of the Don Fishery |
62 | The drought of 1995 : a report to the Secretary of State for the Environment |
63 | Back to life : bringing the environment back to the people of the North West |
64 | The quality of the Humber Estuary 1980-1990 : report of the National Rivers Authority |
65 | Study into the effect of Chertsey STW on the North Arm of the River Bourne |
66 | Angle on the Broads : helping you get the most out of fishing on the Broads |
67 | River in the Dourdogne region |
68 | Annex to 'achieving the quality' |
69 | Paleolimnological Approaches to the WFD |
70 | Road transport and the environment |
71 | Fish Tanks in the Hatchery |
72 | The Calder catchment (river factfiles) |
73 | Uses of the water environment |
74 | Colliery closures in the Midlands : a review of the potential impact of colliery closures on the water environment in the Midlands |
75 | Rivers of the New Forest |