Design practices for covered drains in an agricultural land drainage system : a world-wide survey /
164123
Main Authors: | , , |
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格式: | |
出版: |
New Delhi, India : International Commission on Irrigation and Drainage,
1987
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主题: |
164123
Main Authors: | , , |
---|---|
格式: | |
出版: |
New Delhi, India : International Commission on Irrigation and Drainage,
1987
|
主题: |