51 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
52 | A report on water quality issues within the Midford Brook catchment - June 1996 |
53 | Biological characteristics and exploitation of sea trout in the River Tywi during 1989 |
54 | Further investigation of the pilot borehole at Bean's Lane, Wortham (94/7/912) : September 1994 |
55 | Database and atlas of aquatic vascular plants in the British Isles : part 2 : distribution maps (352/2/N and Y) |
56 | Micro low flows average and low flows estimation in the SW region : validation of regional version 1.3 software |
57 | The faunal richness of headwater streams. Stage 3 : impact of agricultural activities. Volume 2 : appendices (Note 392) |
58 | Micro low flows average and low flow estimation in the SW region : validation of version 1.2 software |
59 | Micro low flows average and low flows estimation in the SW region : validation of regional version 1.1 software |
60 | Anglian radar information project : report no. 5 : quantitative precipitation estimation with weather radar : problems and solutions for the National Rivers Authority |
61 | Library and information services of the Instituto de Investigacao Pesqueiras, Angola. Report of a two week consultancy 20 July to 3 August |
62 | Report on the millennium chalk streams fly trends study : a survey carried out in 2000 among 365 fly fishermen, fishery owners, club secretaries and river keepers |