| 000 | 00400nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aBressler, G.O. | ||
| 245 | _aFertility and hatchability of egg produced by leghorns on sloping wire floors | ||
| 260 | _aPennsylvania | ||
| 260 | _c1972 | ||
| 300 | _a18 p. | ||
| 440 | _aNo. 330; Pennsylvania Agricult | ||
| 901 | _pS28041 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c122568 _d122568 |
||