Conducting on-farm animal research : procedures and economic analysis
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| 格式: | 圖書 |
| 語言: | English |
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Singapore :
Winrock International Institute for Agricultural Development and International Development Research ,
1989
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添加標簽 | 實物描述: | xiii, 244p |
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Proceedings on-farm Animal research/extension and ITS economic analysis January 19-23,1987