| 000 | 00419 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aMackie, A.B., Heady, E.O., How | |
| 245 | 1 | _aOptimum farm plans for begining tenant farmers on clarion-webster soils (Anapplication of linear programming) | |
| 260 |
_aAmes _c1957 |
||
| 300 | _a1-56 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aFarm, Soils Iowa Agricultural Experiment Station. Research Bulletin No. 449 | ||
| 901 | _aS63681 | ||
| 999 |
_c110084 _d110084 |
||