The use of aerial survey in forestry and agriculture
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| 主要作者: | |
|---|---|
| 格式: | 图书 |
| 语言: | English |
| 出版: |
Aberystwyth ;
Imperial forestry bureau and pastures and field crops,
1947
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| 版: | 6th |
| 主题: | |
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The use of aerial survey in forestry and agriculture