| 000 | 00385 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aJosephson, H.B., Humphries, W.R., Church, L.M. | |
| 245 | 1 | _aFarm machinery survey of selected districts in Pennsylvania | |
| 260 |
_aPennsylvania _c1929 |
||
| 300 | _a1-15 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aFarm Pennsylvania Agricultural Experiment Station. Bulletin No. 237 | ||
| 901 | _aS47901 | ||
| 999 |
_c103863 _d103863 |
||