Guide to public affairs research in Pennsylvania, commentary on the status of research with a selected bibliography of materials published from 1940 to 1959 on governmental economic, social and physical resources subjects
| المؤلف الرئيسي: | |
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| التنسيق: | كتاب |
| اللغة: | English |
| منشور في: |
University Park
Pennsylvania State University
1959.
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| الموضوعات: |