Technologies for rural development based on an Expert Meeting on New Modalities for the Action of Unesco in the Field of Technologies for Rural Development, Brussels, May 1980.
| مؤلف مشترك: | |
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| التنسيق: | كتاب |
| اللغة: | English |
| منشور في: |
Paris
The Unesco Press
1981.
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| الموضوعات: |