Small Scale Placer Mines As A Source Of Gold Employment And Livelihood In 1935
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Small scale Placer Mines as a Source of Gold Employment and Livelihood in 1935
| Author | : Charles White Merrill,Charles William Henderson,Oscar Edward Kiessling,National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques (U.S.) |
| Publsiher | : Unknown |
| Total Pages | : 100 |
| Release | : 1937 |
| Genre | : Economics |
| ISBN | : MINN:31951D03592768E |
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Federal Placer mining Laws and Regulations
| Author | : United States. Bureau of Mines,Frederick William Johnson,Charles Freeman Jackson |
| Publsiher | : Unknown |
| Total Pages | : 56 |
| Release | : 1938 |
| Genre | : Hydraulic mining |
| ISBN | : UOM:39015077315045 |
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Technical Paper Bureau of Mines
| Author | : United States. Bureau of Mines |
| Publsiher | : Unknown |
| Total Pages | : 1516 |
| Release | : 1937 |
| Genre | : Mines and mineral resources |
| ISBN | : WISC:89046337168 |
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Production Employment and Productivity in the Mineral Extractive Industries 1880 1938
| Author | : Vivian Eberle Spencer |
| Publsiher | : Unknown |
| Total Pages | : 192 |
| Release | : 1940 |
| Genre | : Economics |
| ISBN | : MINN:30000009379979 |
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Analyses of Pennsylvania Bituminous Coals
| Author | : George Hall Ashley |
| Publsiher | : Unknown |
| Total Pages | : 1126 |
| Release | : 1939 |
| Genre | : Bituminous coal |
| ISBN | : STANFORD:36105127363336 |
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Technical Paper
| Author | : Anonim |
| Publsiher | : Unknown |
| Total Pages | : 970 |
| Release | : 1938 |
| Genre | : Mineral industries |
| ISBN | : UCAL:B3022099 |
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Rock Drilling
| Author | : C. E. Nighman,Oscar Edward Kiessling |
| Publsiher | : Unknown |
| Total Pages | : 930 |
| Release | : 1940 |
| Genre | : Labor productivity |
| ISBN | : IND:30000099761847 |
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Mineral Technology and Output Per Man Studies
| Author | : Anonim |
| Publsiher | : Unknown |
| Total Pages | : 1308 |
| Release | : 1937 |
| Genre | : Mineral industries |
| ISBN | : UIUC:30112005430464 |
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