1. Anderson, G., 1983. Human Exposure to Atmospheric Concentrations of Selected Chemicals, Volume 1, US Environmental Protection Agency. NTIS PB84-102540
2. Bureau of the Census, 1990a. Census of Population and Housing: Summary Tape File 1B Extract on CD-ROM [machine-readable data files]. Washington, The Bureau (producer and distributor)
3. Bureau of the Census, 1990b. Census of Population and Housing: Summary Tape File 3 on CD-ROM [machine-readable data files]. Washington, The Bureau (producer and distributor)
4. Bureau of the Census, 1993. TIGER/LineTM Files, 1992 [machine-readable data files]. Washington, The Bureau (producer and distributor)
5. Application of hazard identification information for pollutants modeled in EPA’s Cumulative Exposure Project;Caldwell;Toxicology and Industrial Health,1998