1. Economic impact of a community-wide waterborne outbreak of gastrointestinal illness;Baker;Public Health Briefs,1979
2. Experiences and benefits of the application of minimum flow water conservation hardware;Baker,1982
3. A theory of the allocation of time;Becker;Econom. J.,1965
4. 1980 Census of the Population: General Population Characteristics, Pennsylvania;Bureau of the Census,1982
5. The economic cost of illness revisited;Cooper;Social Security Bull.,1976