1 | The Nidd and Wharfe catchment (river factfiles) |
2 | The Swale, Ure and Ouse catchment (river factfiles) |
3 | River Wissey investigations : linking hydrology and ecology : summary of a recommendations for the River Wissey (OI/526) |
4 | Scope for growth and levels of contaminants in mussels from the Wash. Phase 2 |
5 | River Wissey investigations : linking hydrology and ecology : the basis for in-river flow management. Final Draft (OI/526/ ) |
6 | Analysis of natural and polluted river communities in Great Britain- Progress report for the period January-December 1987 |