1 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
2 | Bathing water quality in England and Wales in 1993 : report of the National Rivers Authority |
3 | Bathing water quality in England and Wales in 1995 : report of the National Rivers Authority |
4 | Bathing water quality in England and Wales in 1994 : report of the National Rivers Authority |