The Mining Industries, 1899-1939: A Study of Output, Employment and Productivity Harold Barger Sam H. Schurr
| Autor: | Weidenhammer, R. M. |
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| Zdroj: | The Journal of Land & Public Utility Economics, 1945 Feb 01. 21(1), 86-87. |
| Databáze: | JSTOR Journals |
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