| 000 | 00351nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 100 | _aRobinson, Joe L., Hutchcroft, Charles D. | ||
| 245 | _a1949 iowa corn yield test | ||
| 260 |
_aIowa _c1950 |
||
| 300 | _a490-552:: p. | ||
| 440 | _aIowa Agricultural Experiment | ||
| 901 | _a29561 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c5778 _d5778 |
||