References
- O'Neil , A. E. , Richen , D. and Lundrie , P. 1985 . “A Waterborne Epidemic of Acute Infectious Non-Bacterial Gastroenteritis in Alberta, Canada.” . Canadian Journal of Public Health , 76 : 199 1985
- Putz , G. , Gerard , R. and Smith , D. W. “Mixing and Microorganism Survival in an Ice-Covered River.” . Canadian Journal of Civil Engineering , 11 ( Number 2 ) Vol, 1984
- Snow , J . 1855 . “On the Mode of Transmission of Cholera.”, , 2nd ed. London : Churchill . (reprinted New York Commonwealth Fund, 1936)