1. County Sanitation District of Los Angeles County Pomona Virus Study Final Report. State Water Resources Control Bd. Sacramento, Calif. 1977
2. Report of the Consulting Panel on the Health Aspects of Wastewater Reclamation for Groundwater Recharge State Water Resources Control Bd. Sacramento, Calif. 1976
3. Nellor , M.H. Baird , R.B. Smyth , J.R. Health Effects Study Final Report County Sanitation Districts of Los Angeles County Whittier, Calif. 1984
4. National Academy of Sciences Drinking Water and Health Washington, D.C. 1977