Urban markets, and rural resource productivity incentives for soil conservation among upland farmers in the Philippines
| المؤلف الرئيسي: | |
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| التنسيق: | كتاب |
| اللغة: | English |
| منشور في: |
Ann Arbor, Mich.
UMI Dissertation Services
1991.
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| الموضوعات: |