The mining industries, 1899-1939; a study of output, employment and productivity,
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| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
New York,
Arno Press,
1972 [c1944]
|
| Series: | General series (National Bureau of Economic Research (U.S.) ;
no. 43. |
| Subjects: |
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