| 000 | 00392nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 100 | _aWilkins, F.S., Collins, E.V. | ||
| 245 | _aEffect of time, depth and method of plowing upon yield and eradication of bienni | ||
| 260 |
_aIowa _c1933 |
||
| 300 | _a219-240 p. | ||
| 440 | _aIowa Agricultural Experiment | ||
| 901 | _a21998 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c3782 _d3782 |
||