Sampling technique for estimation of rice stem-borer's incidence in farmer's fields [microform]
| 主要作者: | |
|---|---|
| 格式: | Visual Material |
| 出版: |
Quezon City
Photoduplication Service. University of the Philippines Library
1977.
|
| 主题: |
| 主要作者: | |
|---|---|
| 格式: | Visual Material |
| 出版: |
Quezon City
Photoduplication Service. University of the Philippines Library
1977.
|
| 主题: |