Legislative principles of soil conservation.
| 主要作者: | |
|---|---|
| 格式: | 圖書 |
| 語言: | English |
| 出版: |
Rome
Food and Agriculture Organization of the United Nations
[c1972].
|
| 叢編: | Food and Agriculture Organization of the United Nations. Soils bulletin
15 |
| 主題: |