| 000 | 00521nam a2200145Ia 45e0 | ||
|---|---|---|---|
| 008 | 140117n1984 it |||gr||||Z||||||eng | ||
| 020 | _a9251021546 | ||
| 082 | _a631 | ||
| 100 |
_aUnger, P.W., _eAuthor. |
||
| 245 | 0 |
_aTillage Systems for Soil and Water Conservation _cP. W. Unger _hTextual Documents |
|
| 260 |
_aRome _bF. A. O. _c1984 |
||
| 300 | _a278 | ||
| 653 | _aTechniques, equipment & materials | ||
| 942 |
_2ddc _cTXT |
||
| 999 |
_c3420 _d3420 |
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