United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Health and the Environment.
Washington : U.S. Govt. Print. Off., 1979.
United States. Congress. House. Committee on Science and Technology. Subcommittee on the Environment and the Atmosphere.
Washington : U.S. Govt. Print. Off., 1977.
United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Health and the Environment.
Washington : U.S. Govt. Print. Off., 1978.
United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Health and the Environment.
Washington : U.S. Govt. Print. Off., 1978.
United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Health and the Environment.
Washington : For sale by the Supt. of Docs., U. S. Govt. Print. Off, 1976.
United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Health and the Environment.
Washington : U.S. G.P.O., 1980.