1. Fecal coliform 2 × 1061.84 1.44-2.30 SAC 1979;
2. Akin, E.W., 1983, Infective dose of waterborne pathogens, Proc. 2nd National Symposium Municipal Wastewater Disinfection, Orlando, Florida, Health Effects Research Laboratory, Cincinnati, OH.
3. Destruction by Anaerobic Mesophilic and Thermophilic Digestion of Viruses and Indicator Bacteria Indigenous to Domestic Sludges