Residential radon contamination and indoor quality research needs : hearing before the Subcommittee on Natural Resources, Agriculture Research, and Environment of the Committee on Science and Technology, U.S. House of Representatives, Ninety-ninth Congress, second session, September 17, 1986.
Published: (1987)
Radon Pollution Control Act of 1987 : hearing before the Subcommittee on Transportation, Tourism, and Hazardous Materials of the Committee on Energy and Commerce, House of Representatives, One hundredth Congress, first session, April 23, 1987.
Published: (1987)