| 000 | 00413nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 245 | _aNinteen sixty-three Pennsylvania commercial hybrid corn tests | ||
| 260 | _aPennsylvania | ||
| 260 | _bPennsylvania Agricultural Experiment Station | ||
| 260 | _c1964 | ||
| 300 | _a16 p. | ||
| 440 | _aNo. 253; Pennsylvania Agricult | ||
| 901 | _pS8526 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c128371 _d128371 |
||