| 000 | 00355 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 |
_a _d |
|
| 245 | 1 | _a43ed Annual report of Pennsylvania agricultural experiment station | |
| 260 |
_aPennsylvania _c1930 |
||
| 300 | _a1-52 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aAgriculture Pennsylvania Agricultural Experiment Station. Bulletin No. 258 | ||
| 901 | _aS47921 | ||
| 999 |
_c103910 _d103910 |
||