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Asbestos: Uses and Hazards
Year: 1986 | G-2 (GeoNotes)
Calculation of an Aluminum to Alkali Ratio in Igneous Rocks
Year: 1986 | G-3 (GeoNotes)
Mines and Prospects of the Challis Quadrangle, Idaho, 2nd ed.
Year: 1986 | MPM-22 (Mines and Prospects Maps) | Scale: 1:250,000