| 000 | 00352nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aJohnson, M.W., Williams, R.L. | ||
| 245 | _a1975 Pennsylvania, corn performance studies | ||
| 260 | _c1976 | ||
| 300 | _a46 p. | ||
| 440 | _aNo. 354; Pennsylvania Agricult | ||
| 901 | _pS29715 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c151653 _d151653 |
||