| 000 | 00408nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 210804s9999 xx 000 0 und d | ||
| 082 |
_a631 _bAGR |
||
| 110 | _aAgrarian Research and training institute | ||
| 245 | 0 | _aFarmers' knowledge and perception of improved technology | |
| 260 |
_aColombo _bAgrarian Research and training institute _c1980 |
||
| 300 | _a83 p. | ||
| 650 | _aAgriculture | ||
| 942 | _cPRGD | ||
| 999 |
_c159632 _d159631 |
||