The mining industries, 1899-1939 : a study of output, employment and productivity /
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| Main Author: | |
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| Corporate Author: | |
| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
New York :
National Bureau of Economic Research,
1944.
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| Series: | Publications of the National Bureau of Economic Research ;
no. 43. |
| Subjects: |
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