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Hours of labour industry Netherlands /
| Language: | Undetermined |
|---|---|
| Published: |
1923.
|
| Series: | Its studies and reports series D (Wages and hours, 11)
|
| Language: | Undetermined |
|---|---|
| Published: |
1923.
|
| Series: | Its studies and reports series D (Wages and hours, 11)
|