Search U.S. government technical reports digitized or harvested by TRAIL.
Cobalt availability--domestic :a minerals availability system appraisal
The depletion allowance and domestic minerals availability :a case study in copper
Manganese availability--domestic :a minerals availability system appraisal
Gold availability--world :a minerals availability appraisal
Primary silver availability--market economy countries :a minerals availability appraisal
International mining cost indexation system :indexes for 96 countries