1. World Health Organisation (1993) Guidelines for Drinking Water Quality. 2nd edn. Volume 1, Recommendations. WHO, Geneva
2. Hunt SM, Chrzanowska C, Barnett CR, Brand HN, Fawell JK (1987) A comparision of in vitro cytotoxicity assays and their application to water samples. ATLA, Alternatives to Laboratory Animals 15: 20
3. Hunt SM, Chrzanowska C, Barnett CR, Fawell JK (1986) The application of in vitro cytotoxicity assays to the water industry. ATLA, Alternatives to Laboratory Animals 14: 64
4. Metropolitan Water Board (1964) 41st report on the results of the bacteriological, chemical and biological examination of the London waters for the years 1963–1964
5. Metropolitan Water Board (1966) Forty-second report on the results of the bacteriological, chemical and biological examintion of the London waters for the years 1965–1966