Ang pagpapaunlad ng gawain ng ating magsasaka.
| Institutionell upphovsman: | |
|---|---|
| Materialtyp: | Bok |
| Språk: | English |
| Publicerad: |
Manila
Bureau of Printing
1940.
|
| Serie: | Philippine Adult Education series, booklet
no.3 |
| Ämnen: |