1. Bouwer, H. 1968. Returning wastes to land, a new role for agriculture.Journal of Soil and Water Conservation 25(5): 164–168.
2. Bruvold, W. H. 1972.Public Attitudes Toward Reuse of Reclaimed Water. University of California Water Resources Center. Los Angeles.
3. Bruvold, W. H., and J. Crook. 1979. Water reuse and recycling: gaining public acceptance.Consulting Engineer 53(3): 126–129.
4. Cooper, R. C. 1970.Public Health Impacts of Alternative Waste Water Management Concepts. School of Public Health, University of California, Berkeley.
5. Craun, G. 1979. Waterborne disease outbreaks in the United States.Journal of Environmental Health 4(5): 259–265.