EPA lacks assurance that disinfectants kill germs / United States General Accounting Office ; Statement of Richard L. Hembra, Director, Environmental Protection Issues Resources, Community, and Economic Development Division before the Environment, Energy, and Natural Resources Subcommittee on Government Operations, House of Representatives (Testimony ; GAO/T-RCED-91-1)
EPA lacks assurance that disinfectants kill germs / United States General Accounting Office ; Statement of Richard L. Hembra, Director, Environmental Protection Issues Resources, Community, and Economic Development Division before the Environment, Energy, and Natural Resources Subcommittee on Government Operations, House of Representatives