Adoption of high yielding rice farming practices by the rice farmers in the Amparai District, Republic of Sri Lanka [microform]
| Príomhchruthaitheoir: | |
|---|---|
| Formáid: | Visual Material |
| Foilsithe / Cruthaithe: |
Quezon City
Photoduplication Service. University of the Philippines Library
1980.
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| Ábhair: |