| 000 | 00398nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 080 | _a631.459:631.61:631.51.021 | ||
| 100 | _aUnger, P.G. | ||
| 245 | _aTillage systems for soil and water conservation | ||
| 260 | _aRome | ||
| 260 | _bFAO | ||
| 300 | _a278 p. | ||
| 440 | _aNo. 54; FAO, Soils Bulletin | ||
| 901 | _pS37558 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c135599 _d135599 |
||