| 000 | 00354 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aPowers, W.L., Ruzek, C.V. | |
| 245 | 1 | _aCrop rotation and soil fertility | |
| 260 |
_aCorvallis _c1923 |
||
| 300 | _a1-12 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aCrop, Rotation, Soil, Fertility Oregon Agricultural Experiment Station. Circular No. 44 | ||
| 901 | _aS47736 | ||
| 999 |
_c103713 _d103713 |
||