GAO 1998. "Hazardous Waste: Unaddressed Risks at Many Potential Superfund Sites," Report to the Ranking Minority Member, Committee on Commerce, House of Representatives. GAO/RCED-99-8. Washington, D.C.: Resources, Community, and Economic Development Division, United States General Accounting Office, 1998. GAO reports can be ordered on-line or by phone: 202-512-6000.

GAO 1987. "Superfund: Extent of Nation's Potential Hazardous Waste Problem Still Unknown," Report to Congressional Requesters. GAO/RCED-88-44. Washington, D.C.: Resources, Community, and Economic Development Division, United States General Accounting Office, 1987. GAO reports can be ordered on-line or by phone: 202-512-6000.

GAO 1985. "EPA's Inventory of Potential Hazardous Waste Sites Is Incomplete." GAO/RCED-85-75. Washington, D.C.: Resources, Community, and Economic Development Division, United States General Accounting Office, 1985. GAO reports can be ordered on-line or by phone: 202-512-6000.

Johnson, Barry L. and Christopher T. DeRosa. "The Toxicologic Hazard of Superfund Hazardous Waste Sites." Reviews on Environmental Health, Volume 12, No. 4, pp. 235-251. Freund Publishing House, Ltd, 1997. This article can be viewed on-line.

Johnson, Barry L. Testimony of Barry L. Johnson to the Subcommittee on Commerce, Trade, and Hazardous Materials. Washington, D.C.: U.S. House of Representatives, Committee on Commerce, May 23, 1995. Cited in "Hazardous Waste: Human Health Effects," Proceedings of the 2nd International Congress on Hazardous Waste: Impact on Human and Ecological Health. Barry L. Johnson, Charles Xintaras, John S. Andrews, Jr., Editors. Agency for Toxic Substances and Disease Registry, US Department of Health and Human Services, Public Health Service. Princeton, NJ: Princeton Scientific Publishing Co., Inc., 1997.

National Research Council (NRC). "Ranking Hazardous-Waste Sites." Washington, DC: National Academy Press, 1994.

OTA. Superfund Strategy. Washington, DC: U.S. Congress, Office of Technology Assessment, OTA-ITE-252, April 1985. OTA reports can be downloaded on-line or ordered by phone: (202) 512-1800.