Improvements of labor conditions in the United States.
| מחבר ראשי: | |
|---|---|
| פורמט: | ספר |
| שפה: | English |
| יצא לאור: |
Philadelphia
The American Academy of Political and Social Science
[c1906].
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| סדרה: | Annals of the American Academy of Political and Social Science, v. 27, no. 3
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| נושאים: |