| 000 | 00386nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 200202s9999 xx 000 0 und d | ||
| 082 | _a630.72 SIM | ||
| 100 | _a"Simmonds, Norman W." | ||
| 245 | 0 | _aFarming systems resarch : A review | |
| 260 | _aWashington | ||
| 260 | _bThe World Bank | ||
| 260 | _c1985 | ||
| 300 | _a97p. | ||
| 650 | _aAgriculture system Research | ||
| 942 | _cB | ||
| 999 |
_c27498 _d27498 |
||