Investigation of rising nitrate concentrations in groundwater in the Eden Valley, Cumbria : scoping study /
Butcher, A. S.
Great Britain.Environment Agency.Science Group.
British Geological Survey.
Olton : Environment Agency, Science Group,
2003.
"A joint project by the Science Group (Air, Land and Water) and the British Geological Survey"
NC/00/24/14 - October 2003.
Includes bibliographical references.