Farming systems development for small farms resource use, productivity and income changes
| 发表在: | The Philippine Review of Business and Economics Vol. XX No. 1 (March 1983), p. 59-85. |
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| 主要作者: | |
| 格式: | Analytics |
| 语言: | English |
| 出版: |
1983.
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| 主题: |