| 000 | 00428nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aMichalson, E.L., McAlexander, R.H. | ||
| 245 | _aProduction and marketing characteristics of large egg-producing farms in Pennsyl | ||
| 260 | _aPennsylvania | ||
| 260 | _c1963 | ||
| 300 | _a0.833333333 | ||
| 440 | _aNo. 244; Pennsylvania Agricult | ||
| 901 | _pS6244 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c130681 _d130681 |
||