Wage rates and working time in the bituminous coal industry, 1912-1922 : with a summary of rates for separate occupations in each coal district in the United States /
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| Format: | Book |
| Language: | English |
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Philadelphia :
University of Pennsylvania press,
1932.
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| Series: | Major Industrial Research Unit studies ;
no. 21. |
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| Item Description: | "Interpretation of the data prepared by the wage rate and earnings sections of the United States Coal commission ... The data were published in detail in the commission's report."--p. vii and xxii. |
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| Physical Description: | xxii, 374 pages : illustrations (map) tables (part mounted folded) diagrams ; 24 cm. |