| 000 | 00451nam a2200181Ia 4500 | ||
|---|---|---|---|
| 008 | 140317s9999 xx 000 0 und d | ||
| 082 | _a631.1 | ||
| 100 | _aRuthenberg Hans. | ||
| 245 | _aFarming systems in the tropics. | ||
| 260 |
_aOxford _bOxford University Press _c1976 |
||
| 300 | _a366 | ||
| 650 | _aAgriculture | ||
| 653 | _aAgriculture | ||
| 653 | _aCrop Production | ||
| 653 | _aFarming Systems | ||
| 653 | _aTropics | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c9273 _d9273 |
||