| 000 | 00353nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 161118s2016 xx 000 0 und d | ||
| 082 | _a630.715 ROL-E | ||
| 100 | _aRoling Niels | ||
| 245 | 0 | _aExtension Science; Information systems in Agricultural development | |
| 260 |
_aCambridge _bCambridge University Press _c1988 |
||
| 300 | _a233 | ||
| 942 |
_2ddc _03 |
||
| 999 |
_c31269 _d31269 |
||