Metal-mine accidents in the United States during the calendar year 1918 : with supplemental labor and accident tables for the years 1911 to 1918, inclusive /
| Další autoři: |
Fay, Albert H.
(
Sestavovatel, kompilátor )
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| Korporace: | |
| Typ dokumentu: | Kniha |
| Jazyk: |
angličtina |
| Vydavatel: |
Washington :
Government Printing Office,
1920.
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| Edice: |
Technical Paper ;
252 |
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