Geology and Ore Deposits of the Cuyuna North Range Minnesota; Geological Survey Professinal Paper 407 text & plates

by Robert Gordon Schmidt

$20 · Offered by Crossroads Books

Washington: United States Government Printing Office, 1963. hard slip cover with 11 plates folded inside pocket, text, 11.25" x9", 96 pages, indexed, illustrated. from the title page, "The occurrence and origin of Precdambrian iron ore and manganiferous iron ore." More

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