Employment and income from gold placering by hand methods, 1935-37 / / by Robinson Newcomb, Charles White Merrill, and R. L. Kiessling |
Autore | Newcomb Robinson <1901-> |
Pubbl/distr/stampa | Philadelphia, Pennsylvania : , : Work Projects Administration, National Research Project : , : Department of the Interior, Bureau of Mines, , 1940 |
Descrizione fisica | 1 online resource (xiv, 142 pages) : illustrations, maps |
Collana | Mineral technology and output per man studies |
Soggetto topico |
Gold mines and mining - United States
Placer mining - United States Miners - United States Gold miners - United States Employment re-entry Gold miners Gold mines and mining Miners Placer mining |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Record Nr. | UNINA-9910706702403321 |
Newcomb Robinson <1901-> | ||
Philadelphia, Pennsylvania : , : Work Projects Administration, National Research Project : , : Department of the Interior, Bureau of Mines, , 1940 | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
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Prototype borehole miner selectively extracts gold from permafrost [[electronic resource]] |
Pubbl/distr/stampa | [Washington, DC] : , : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, , [1997] |
Descrizione fisica | 2 unnumbered pages : digital, PDF file |
Collana | Technology news |
Soggetto topico | Placer mining - United States |
Formato | Materiale a stampa |
Livello bibliografico | Monografia |
Lingua di pubblicazione | eng |
Record Nr. | UNINA-9910696453403321 |
[Washington, DC] : , : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, , [1997] | ||
Materiale a stampa | ||
Lo trovi qui: Univ. Federico II | ||
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