| 000 | 00393nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 140317s9999 xx 000 0 und d | ||
| 082 | _a633 | ||
| 100 | _aOsborn,W.M. | ||
| 245 | _aCrop rotation tillage and fertility experiments at the Lawton(okla) field station, 1917-49. | ||
| 260 |
_aWashington _bU.S. Dept. of Agriculture. _c1955 |
||
| 300 | _a58 | ||
| 700 | _aMathews,O.R. | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c194 _d194 |
||