Context

Context of Defense Production Act progress report--no. 50: potential shortages of ores, metals, minerals, and energy production : hearings before the Joint Committee on Defense Production, Congress of the United States, Ninety-second Congress, first session on potential shortages of ores, metals, and minerals, fuels and energy resources, estimated future production and consumption, recycling of metals, dependence on foreign sources, recommendations for meeting demand and related matters, [Volume 1], August 2, 1971
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