| 000 | 00349nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 100 | _aStevenson, W.H., Schaub, I.O., Snyder, A.H. | ||
| 245 | _aMaintenance of fertility | ||
| 260 |
_aIowa _c1908 |
||
| 300 | _a4-30 p. | ||
| 440 | _aIowa Agricultre Experiment St | ||
| 901 | _a21629 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c3508 _d3508 |
||