1. Waterborne giardiasis in the United States: a review;Craun G. F.;Am. J. Public Health,1979
2. Small system strategy for public water supply systems. Safe Drinking Water Act FRL1514-7;Federal Register;Fed. Regist.,1980
3. Meyer , E. A. , and E. L Jarroll . 1980 . Giardiasis. Am. J. Epidemiol. 3 : 1 - 12 .
4. U.S. Department of Health Education and Welfare Division of Environmental Engineering and Food Protection. 1967. Policy statement on the use of ultraviolet process for disinfection ofwater. U.S. Department of Health Education and Welfare Washington D.C.
5. Wolfe , M. S. 1979 . Giardiasis. Pediatr. Clin. North Am. 26 : 295 - 303 .