Testimony of John L. Lewis before the House of Representatives subcommittee on miners' welfare of the Committee on Education and Labor, April 3, 1947 and subcommittee of the Senate Committee on Public Lands to investigate the Centralia mine explosion, April 17, 1947.
|Corporate Author:||United States.|
|Related Names:||Lewis, John L. 1880-1969.|
Washington, D.C. : Labor's Non-Partisan League, [1947?]
Mine explosions /
Mine explosions / Illinois /
Coal mines and mining > Coal mines and mining / United States.
Coal mines and mining > Coal mines and mining / Safety measures.
128 p.,  p. of plates :
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