The effect of innovation on farm income in two selected barrios of Batangas and two selected barrios of Laguna, Philippines 1958-1962 [microform].
| 主要作者: | |
|---|---|
| 格式: | Visual Material |
| 语言: | English |
| 出版: |
Quezon City
Photoduplication Service,University of the Philippines Library.
|
| 主题: |