926 | An investigation of sewage on the beach at Porthcothan |
927 | Assessing and controlling the ecotoxicity of complex effluents |
928 | Charging for discharges scheme : guidance to the engineering industry |
929 | Charging for discharges scheme : guidance to the power generation industry |
930 | An assessment of river water quality in the River Kenn |
931 | A survey of ferruginous minewater impacts in the Welsh coalfields |
932 | A survey of ferruginous minewater impacts in the Welsh coalfields |
933 | Dioxins and the River Doe Lea : plain English report |
934 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
935 | Narrowboats on the Thames : useful hints and tips |
936 | Locks and weirs on the river Thames : how do they work? |
937 | Second annual review of the Lower Bristol Avon catchment management plan |
938 | Second annual review of the Upper Bristol Avon catchment management plan |
939 | The River Avon and its tributaries near Malmesbury : river management studies |
940 | Eel and elver studies in the Severn : interim report (256/6/ST) |
941 | Fishery survey of the Bridgwater and Taunton Canal |
942 | The quality of rivers and estuaries in Northumbria region 1990 |
943 | A guide to sustainable urban drainage : protecting the quality of our environment |
944 | Air dispersion climate from the Castle Cement works at Ribblesdale |
945 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
946 | Pesticide residues in fish taken from the Newlyn River (1992) |
947 | A Review Of The Impact Of Microbiological Contaminants In Groundwater |
948 | Doe Lea restoration study : the work of WRc |
949 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
950 | The NRA in business : annual review and summary accounts 1993-94 |