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.

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. - Washington, U.S. Govt. print. off., 1930. - 70 p. : incl. tables. ; 24 cm.



gs 30000300


Radium.

KF27 / .M57 1930

Y 4.M 66/1:R 11/2

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