1. Waterborne Disease Outbreaks in the US-1971-1974;Craun;Jour. AWWA,1976
2. Review of the Causes of Waterborne Disease Outbreaks;Craun;Jour. AWWA,1973
3. Gastrointestinal Illness at Sewickley, Pa;Lippy;Jour. AWWA,1976
4. The Necessity of Controlling Bacterial Populations in Potable Water: Community Water Supply;Geldreich;Jour. AWWA,1972
5. Outbreak of Gastrointestinal Illness at Crater Lake National Park-Oregon;Morbidity and Mortality Weekly Report. CDC,1975