| 000 | 00357 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aHopkins, J.A., Taylor, P.A. | |
| 245 | 1 | _aCost of producation in agriculture | |
| 260 |
_aIowa _c1935 |
||
| 300 | _a388-432 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aProducation, Agriculture Iowa Agricultural Experiment Station. Research Bulletin No. 184 | ||
| 901 | _aS51768 | ||
| 999 |
_c109450 _d109450 |
||