Manufacture of one gram of radium : hearing before a subcommittee of the Committee on Mines and Mining, House of Representatives, Seventy-first Congress, second session, on H.R. 4811. February 11, 25, and March 4, 11, 25, 1930. - United States. Congress. House. Committee on Mines and Mining; United States. 71st Cong., 2d sess., 1929-1930. (Washington, U.S. Govt. print. off., 1930)
Available also in microform in CIS US congressional committee hearings, accession number H548-13.
Keywords: Radium