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4426Where to fish on the River Wye and its tributaries : a guide to day ticket facilities
4427River Irwell catchment management plan : water quality supplement
4428River habitats in England and Wales : a national overview : river habitat survey report no 1
4429Effects of Canoeing on Fish Stocks and Angling
4430Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority
4431The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire;
4432A Review of Grayling Ecology, Status and Management Practice Recommendations for Future Managemetn in England and Wales
4433Guidelines on statutory returns : Freshwater Fish Directive
4434Teddington flow survey 1989
4435Assessing the impact of dewatering on water resources
4436The use and design of oil separators in surface water drainage systems
4437The utilisation of stick-pile otter holts in south east Wales
4438Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS)
4439Evaluation of FRONTIERS accumulation forecasts in the NRA Thames and North West regions : final report of the Joint Met
4440River Usk barrage position statement, 4th August 1993
4441The River Ash : enhancement project
4442UK Sewage Sludge Survey
4443Substitute Liquid Fuels Used In Cement Kilns - Life Cycle Analysis
4444Cley sea defences
4445Environmental pilot audit : National Rivers Authority Anglian region central area : Brampton Huntingdon
4446Improving the Environment Agency's contribution to wetland bird populations
4447The Waterways Bird Survey
4448Groundwater-surface Water Interactions in the Hyporheic Zone
4449Time of travel on the River Lee under high and medium flow : appendix b : time of travel on the small River Lee
4450The management of the water resources of the Little Ouse groundwater unit