Water level management plans : a procedural guide for operating authorities.
Great Britain.Ministry of Agriculture, Fisheries and Food.
Great Britain.Welsh Office.
Association of Drainage Authorities.
English Nature (Agency)
Great Britain.National Rivers Authority.
Royal Society for the Protection of Birds.
[London] : MAFF,
1995.
PB1793.
"This guide has been prepared by the Ministry of Agriculture, Fisheries and Food and the Welsh Office, the Association of Drainage Authorities, English Nature, the National Rivers Authority and the Royal Society for the Protection of Birds"
Includes bibliographical references.