| 000 | 00457nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 180413s9999 xx 000 0 und d | ||
| 020 | _a471934178 | ||
| 245 | 0 | _aPlanned Change In Farming Systems Progress In On Farm Research Edited By Robert Tripp | |
| 260 | _bChichester New York : J. Wiley Exeter Uk : Co-Publication With Sayce Pub. C1991. | ||
| 300 | _a348 | ||
| 546 | _aEng | ||
| 690 | _aAgriculture - Research - On-Farm ; Agricultural Systems - Research. | ||
| 999 |
_c31455 _d31455 |
||