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476Entomology For Angler's Course (2009) 11
477Entomology For Angler's Course (2009) 12
478Entomology For Angler's Course (2009) 13
479Entomology For Angler's Course (2009) 15
480Entomology For Angler's Course (2009) 16
481Entomology For Angler's Course (2009) 17
482Entomology For Angler's Course (2009) 18
483Entomology For Angler's Course (2009) 19
484Candidate substances requiring Environmental Quality Standards (EQS)
485Deveoplment of a Framework for Assessing the Suitability of Controlled Landfills to Accept Disposal of Solid Low-Level Radioactive Waste: Principles Document
486Metal contamination of sediments an statutory quality objectives
487Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918
488Contaminated land and the water environment : report of the National Rivers Authority
489Diversion and entrapment of fish at water intakes and outfalls (Report 1)
490Conservation requirements of southern damselfly in chalkstream and fen habitats
491Summary report on blue-green algae toxin analysis, Toxicity Assessment and reporting to the Environment Agency, 1998
492Crayfish conservation (378/8/N) : interim report for 1993
493Waterways Breeding Bird Survey: progress and population trends: 1998
494Scenarios for the operational implementation of remote sensing of snow by satellites : interim report (207/3/N)
495The physical character of rivers and streams in the UK and Isle of Man
496Data for reed litter decay and aquatic macroinvertebrates colonisation
497Assessment of the distribution of Bembidion testaceum and reasons for its decline
498Bioaccumulation as an approach for detection and monitoring of Red List trace organic contaminants (240/11/Y) : a literature review : interim report
499National Centre for Toxic and Persistent Substances : business case
500Review of Sea Trout Fecundity