| 000 | 00341nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 100 | _aStevenson, W.H.,Brown, P.E. | ||
| 245 | _aIowa system of soil management | ||
| 260 |
_aIowa _c1923 |
||
| 300 | _a292-318 p. | ||
| 440 | _aIowa Agricultural Experiment | ||
| 901 | _a21751 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c3615 _d3615 |
||