| 000 | 00501 a2200157 4500 | ||
|---|---|---|---|
| 020 | _a0821318667 | ||
| 041 | _aEn | ||
| 082 |
_a630.967 _bAGR |
||
| 245 |
_aAgricultural technology in Sub-Saharan Africa _ba workshop on research issues |
||
| 260 |
_c1991 _aWashington _bThe World Bank _g1991 |
||
| 300 |
_c28cm. _ax , 142 p. |
||
| 440 | _arld bank discussion papers number 12 | ||
| 650 | _aAgriculture | ||
| 650 |
_a Agricultural innovations - Africa _a Agriculture research - Africa |
||
| 942 |
_s1 _cSR |
||
| 999 |
_c22929 _d24476 |
||