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276Catches of migratory fish in the River Don, Aberdeenshire
277Stream survey and assessment in the Ashford and Folkestone areas
278Lakes, Ponds and Reservoirs in the Southern Region (NRA)
279The 1990 river and estuary classification survey of England and Wales
280The evaluation of an orion ammonium ion selective electrode (220/15/T)
281Anthropogenic Impacts on the Hydrology of Rivers and Lochs
282Model For Investigating The Impacts Of Groundwater Abstraction
283Operational mechanisms for the protection and enhancement of headwaters
284The Impact of Grazing and Upland Management on Erosion and Runoff
285Water resources for the future : a strategy for Midlands Region
286Water resources for the future : a strategy for Southern region
287The feasibility of biomanipulation in reservoirs and deeper lakes : draft final report
288Distribution of Azolla in the Great Ouse catchment
289Investigation into the cause of high phenols in Budleigh Brook (1998)
290Non-compliance of the Bidwell Brook with river quality objectives
291An investigation into the sewage system and storm overflow at Beer (1997)
292River Axe Fish Study - Evaluation of Fish Movements in the Estuary
293Sustainable urban drainage : an introduction : protecting the quality of our environment
294Identification of water quality problems in the Strat and Neet catchments
295Method for the assessment of river water quality using benthic macroinvertebrates
296The National Groundwater and Contaminated Land Centre (NGWCLC)
297The greening of Grasmere: its plankton periodicity in 1988
298Policy and practice for the protection of groundwater - Thames region appendix
299'Sea Vigil' water quality monitoring : the Wash 1992-1993
300The Yarrow catchment : recommendations for statutory water quality objectives