| 000 | 00526cam a22001697a 4500 | ||
|---|---|---|---|
| 008 | 180718b1985 xxu||||| |||| 00| 0 eng d | ||
| 020 | _a0821305662 | ||
| 082 | _aZ In8f | ||
| 100 | _aSimmonds, Norman W. | ||
| 245 |
_aFarming systems research: A review _cby Norman W. Simmonds |
||
| 260 |
_aWashington, D.C. _bIBRD _c1985 |
||
| 300 | _a97p. | ||
| 440 | _aWorld Bank Technical Paper, 43 | ||
| 650 | _aAgricultural systems --Tropics | ||
| 650 | _aAgriculture --Research --On-farm | ||
| 650 | _aAgricultural systems --Research | ||
| 999 |
_c224089 _d224089 |
||