Mining leases -- Environmental aspects : Hardrock mining on federal lands / Committee on Hardrock Mining on Federal Lands, Committee on Earth Resources, Board on Earth Sciences and Resources, Commission on Geosciences, Environment, and Resources, National Research Council
1999
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Mining leases -- Environmental aspects -- United States : Hardrock mining on federal lands / Committee on Hardrock Mining on Federal Lands, Committee on Earth Resources, Board on Earth Sciences and Resources, Commission on Geosciences, Environment, and Resources, National Research Council