1. Health and Aesthetic Aspects of Water Quality.;Cohn,1999
2. Total Coliforms. Proposed Rule;USEPA.;Fed. Reg.,1987
3. Notice of Availability. Total Coliforms;USEPA.;Fed. Reg.,1988
4. Total Coliforms. Final Rule;USEPA.;Fed. Reg.,1989
5. New Regulations for Total Coliforms.;Pontius;Jour. AWWA,1990