| 000 | 00349nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aJohnson, M.W. | ||
| 245 | _a1967 Pennsylvania commercial hybrid corn tests | ||
| 260 | _aUniversity Park | ||
| 260 | _c1968 | ||
| 440 | _aNo. 283; Pennsylvania Agricult | ||
| 901 | _pS14945 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c114908 _d114908 |
||