The four hour day in coal a study of the relation between the engineering of the organization of work and the discontent among the workers in the coal mines
| প্রধান লেখক: | |
|---|---|
| বিন্যাস: | গ্রন্থ |
| ভাষা: | English |
| প্রকাশিত: |
New York
Wilson
1922.
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| বিষয়গুলি: |