Freshwater snails of Britain and Ireland /
Rowson, B.(Ben),author.
Field Studies Council (Great Britain),publisher.
National Museum Wales.
Conchological Society of Great Britain and Ireland.
National Lottery Heritage Fund (Great Britain)
Freshwater Habitats Trust.
Malacological Society of London.
"This guide was produced in association with National Museum Wales, The Conchological Society of Great Britain and Ireland, Cronfra Dreftadaeth, Freshwater Habitats Trust, The Malacological Society of London"--Back of title page.