农作物病虫发生现律及其预测预报 Nóngzuòwù bìng chóng fāshēng xiàn lǜ jí qí yùcè yùbào
| Format: | Book |
|---|---|
| Language: | Chinese |
| Published: |
上海
农业出版社
1959
|
| Subjects: |
| Physical Description: | 490ye |
|---|
| Format: | Book |
|---|---|
| Language: | Chinese |
| Published: |
上海
农业出版社
1959
|
| Subjects: |
| Physical Description: | 490ye |
|---|