title: Quality of groundwater. Proceedings of an International Symposium. Noordwijkerhout, The Netherlands, 23-27 March 1981.
mesh_terms: D003226:Congresses as Topic; D005060:Europe; D012989:Soil Pollutants; D014481:United States; D014876:Water Pollution; D014881:Water Supply
chemical_list: D012989:Soil Pollutants