| 000 | 00378nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aF.A. Hays | ||
| 245 | _aAnnual persistency in relation to winter and annual egg production | ||
| 260 | _aAmherst, Massachusetts | ||
| 260 | _c1926 | ||
| 440 | _aMassachusetts Agricultural Experiment | ||
| 901 | _pS1828 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c152656 _d152656 |
||