| |
|
|
|
|
|
|
|
|
1. |
Record Nr. |
UNINA9910706901203321 |
|
|
Autore |
Leong Yau Sing <1899-> |
|
|
Titolo |
Technology, employment, and output per man in copper mining / / by Y. S. Leong [and five others] |
|
|
|
|
|
|
|
Pubbl/distr/stampa |
|
|
Philadelphia, Pennsylvania : , : Work Projects Administration, National Research Project : , : Department of the Interior, Bureau of Mines, , 1940 |
|
|
|
|
|
|
|
|
|
Descrizione fisica |
|
1 online resource (xvi, 260 pages) : illustrations |
|
|
|
|
|
|
Collana |
|
Mineral technology and output per man studies ; ; report no. E-12 |
|
|
|
|
|
|
Soggetti |
|
Copper mines and mining - United States |
Miners - United States |
Mining machinery |
Copper mines and mining |
Miners |
United States |
|
|
|
|
|
|
|
|
Lingua di pubblicazione |
|
|
|
|
|
|
Formato |
Materiale a stampa |
|
|
|
|
|
Livello bibliografico |
Monografia |
|
|
|
|
|
Note generali |
|
"Work Projects Administration, National Research Project, in cooperation with Department of the Interior, Bureau of Mines." |
"February 1940." |
No FDLP item number available. |
|
|
|
|
|
|
|
|
Nota di bibliografia |
|
Includes bibliographical references. |
|
|
|
|
|
| |