1. Trace elements in the environment and effects on human health (Plenary lecture);Birchall,1991
2. Metal transport in a stream polluted by acid mine drainage — The Afon Goch, Anglesey, UK;Boult,1993
3. Geochemistry of Small Drainage Basins: Massanutten Headwater Streams — Mill Run and Shelter Run;Bricker,1992
4. Acidic deposition to streams, a geology based method predicts their sensitivity;Bricker;Environ. Sci. Technol.,1989
5. 1 : 250 000 Scale Solid Geology Maps;British Geological Survey,1978