Title Lead-zinc stabilization : hearings before the Subcommittee on Minerals, Materials, and Fuels of the Committee on Interior and Insular Affairs, United States Senate, Eighty-Eighth Congress, First Session on S. 1534, A Bill to Protect the Domestic Economy, to Promote the General Welfare, and to Assist in the National Defense by Stabilizing the domestic Lead and Zinc Industry, and For Other Purposes, August 14 and 20, 1963.