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Small mines, prospecting, exploration, development : small mines, costs, [June 1970]

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By: United States. Bureau of Land Management. Portland Service Center.

Publication info: Portland, Or, U.S. Department of the Interior, Bureau of Land Management, Portland Service Center, 1970

Holding Institution: Bureau of Land Management

Subjects: Bibliography Bureau of Land Management Cost of operation Mine valuation Mineral industries Mines and mineral resources Records and correspondence United States
Small mines, prospecting, exploration, development : small mines, costs, [August 1971]

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By: United States. Bureau of Land Management. Portland Service Center.

Publication info: Portland, Or, U.S. Department of the Interior, Bureau of Land Management, Portland Service Center, 1971

Holding Institution: Bureau of Land Management

Subjects: Bibliography Bureau of Land Management Cost of operation Mine valuation Mineral industries Mines and mineral resources Records and correspondence United States