51 | Quantification of the relationship between effluent quality and biological quality : interim report for stage 1 |
52 | River Wissey investigations : linking hydrology and ecology : summary of a recommendations for the River Wissey (OI/526) |
53 | River Glen : river channel assessment : annex E : instream habitat assessment of the River Glen, Lincolnshire |
54 | Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey |
55 | Mercury and methylmercury in the river Yare, Norfolk (1986 - 1992) (OI/420/8/A annex) : annex to main report |
56 | River Glen : river channel assessment : annex C : an assessment of low flow characteristics of the River Glen, Lincolnshire |
57 | The protection of East Anglian wetlands Phase 2 : review of BGS draft report. February 1995 (OI 558) |
58 | River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ ) |
59 | River Glen : river channel assessment : annex B : an analysis of invertebrate records for the River Glen 1976-1991 |
60 | Anglian radar information project : report no. 5 : quantitative precipitation estimation with weather radar : problems and solutions for the National Rivers Authority |