Forestry for people and nature field research and theory on environment and development in the Cagayan Valley, Philippines.
| Định dạng: | Sách |
|---|---|
| Ngôn ngữ: | English |
| Được phát hành: |
Isabela
Cagayan Valley Programme on Environment and Development, Isabela State University
1992.
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| Những chủ đề: |