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Small-scale Placer Mines as a Source of Gold, Employment, and Livelihood in 1935
Language: en
Pages: 100
Authors: Charles White Merrill
Categories: Economics
Type: BOOK - Published: 1937 - Publisher:

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Small-scale Placer Mines as a Source of Gold, Employment and Livelihood in 1935
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Pages: 144
Authors: D. Weintraub
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Federal Placer-mining Laws and Regulations
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Pages: 56
Authors: United States. Bureau of Mines
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Technical Paper - Bureau of Mines
Language: en
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Authors: United States. Bureau of Mines
Categories: Mines and mineral resources
Type: BOOK - Published: 1937 - Publisher:

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Production, Employment, and Productivity in the Mineral Extractive Industries, 1880-1938
Language: en
Pages: 192
Authors: Vivian Eberle Spencer
Categories: Economics
Type: BOOK - Published: 1940 - Publisher:

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