Philadelphia workers in a changing economy .
| المؤلف الرئيسي: | |
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| التنسيق: | كتاب |
| اللغة: | English |
| منشور في: |
Philadelphia
University of Pennsylvania Press
[1956].
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| سلاسل: | Industrial Research Dept. Wharton School of Finance & Commerce, University of Pennsylvania. Resaerch studies,38
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| الموضوعات: |