| 000 | 00387 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aHart, E.B., Peterson, W.H. | |
| 245 | 1 | _aSulphur requirments farm crops in relation to the soil and air supply | |
| 260 |
_aMadison _c1911 |
||
| 300 | _a1-21 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aSoil, Crops, Farm Wisconsin Agricultral Experiment Station. Research Bulletin No. 14 | ||
| 901 | _aS50766 | ||
| 999 |
_c107973 _d107973 |
||