951 | An investigation of sewage on the beach at Porthcothan |
952 | Assessing and controlling the ecotoxicity of complex effluents |
953 | Charging for discharges scheme : guidance to the engineering industry |
954 | Charging for discharges scheme : guidance to the power generation industry |
955 | The Test catchment southern : recommendations for statutory water quality objectives |
956 | A survey of ferruginous minewater impacts in the Welsh coalfields |
957 | A survey of ferruginous minewater impacts in the Welsh coalfields |
958 | Dioxins and the River Doe Lea : plain English report |
959 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
960 | Narrowboats on the Thames : useful hints and tips |
961 | Locks and weirs on the river Thames : how do they work? |
962 | Second annual review of the Lower Bristol Avon catchment management plan |
963 | Second annual review of the Upper Bristol Avon catchment management plan |
964 | The River Avon and its tributaries near Malmesbury : river management studies |
965 | Fishery survey of the Bridgwater and Taunton Canal |
966 | The quality of rivers and estuaries in Northumbria region 1990 |
967 | A guide to sustainable urban drainage : protecting the quality of our environment |
968 | Air dispersion climate from the Castle Cement works at Ribblesdale |
969 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
970 | Pesticide residues in fish taken from the Newlyn River (1992) |
971 | A Review Of The Impact Of Microbiological Contaminants In Groundwater |
972 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
973 | Environmental statement for the River Wandle flood alleviation scheme contract one (C1) |
974 | Cyanobacteria (blue-green algae) in the south west region 1989 |
975 | Toxic blue-green algae : a report by the National Rivers Authority |