Ethiopia an economic analysis of technological change in four agricultural production systems
| 主要作者: | |
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
East Lansing
African Studies Center, Michigan State University
c1974.
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| 丛编: | Occasional papers series Committee on Ethiopian Studies, Michigan State University
monograph no. 2 |
| 主题: |