| 000 | 00468nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1982 xx 000 0 und d | ||
| 082 | _a631.586 H18F | ||
| 100 | _aHalvorson, A.D. | ||
| 245 | 0 | _aFlexorop : a dryland system model | |
| 260 |
_aWashington _bUnited State Department of Agriculture _c1982 |
||
| 300 | _a28cm. 49 | ||
| 440 | _aUnited State Department of Agriculture...report, no.180 | ||
| 650 | _aDRY FARMING | ||
| 653 | _aDRY FARMING | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c79887 _d79887 |
||