1. Advisory Committee on the Microbiological Safety of Food. (1995). Report on Verocytotoxin-producing Escherichia coli. London: HMSO. ISBN 0 11 321909 1
2. Statistical methods in medical research;Armitage,1987
3. An outbreak of diarrhoea and haemolytic uraemic syndrome from Escherichia coli O157:H7 in fresh-pressed apple cider;Besser;Journal of the American Medical Association,1993
4. Optimisation of methods for the isolation of E. coli O157 from beefburgers;Bolton;PHLS Microbiology Digest,1996
5. British Standards Institute. (1997). Microbiology of food and animal feedingstuffs – Horizontal method for the detection and enumeration of Listeria monocytogenes Part 1. Detection method. BS EN ISO 11290-1. BSI, London