Relating waterfowl census areas to statutory site designations in Great Britain /
Cranswick, P. A.
Kirby, J. S.
Joint Nature Conservation Committee (Great Britain)
Wildfowl & Wetlands Trust.
Peterborough : Joint Nature Conservation Committee,
1993.
"A report from The Wildfowl & Wetlands Trust to the Joint Nature Conservation Committee"
Includes bibliographical references.