A cross-sectional study of the diffuion of new rice varities in Central Luzon [microform]
| Príomhchruthaitheoir: | |
|---|---|
| Formáid: | Visual Material |
| Teanga: | Béarla |
| Foilsithe / Cruthaithe: |
Quezon City
Photoduplication Service,University of the Philippines
1976.
|
| Ábhair: |