1. Ayres, P.A. 1977 Coliphages in sewage and the marine environment. InAquatic Microbiology, eds Skinner, F.A. & Shewan, J.M. pp. 275?278. London: Academic Press.
2. Bitton, G. 1980Introduction to Environmental Virology. New York: John Wiley & Sons.
3. Cabelli, V.J. 1981 Epidemiology of enteric viral infections. InWater Pollution Microbiology, eds Goddard, M. & Butler, M. pp. 291?304. Oxford: Pergamon Press.
4. Dhillon, E.K.S. & Dhillon, T.S. 1974 Synthesis of indicator strains and density of ribonucleic acid-containing coliphages in sewage.Applied Microbiology,27, 640?647.
5. Funderburg, S.W. & Sorber, C.A. 1985 Coliphages as indicators of enteric viruses in inactivated sludge.Water Research,19, 547?555.