載入...
Innovation policy for small farmers in the tropics the economics of technical innovation for agricultural development
| 主要作者: | |
|---|---|
| 格式: | Printed Book |
| 語言: | English |
| 出版: |
Oxford
Clarendon Press
1985
|
| 主題: |
| 實物描述: | xii,176p. |
|---|---|
| ISBN: | 0198594879 |