| 000 | 00510 a2200133 4500 | ||
|---|---|---|---|
| 100 | 1 | _aHeady, Earl O., Gilson, J.C. | |
| 245 | 1 | _aOptimum combinations of livestock enterprises and management practices on farms including supplementary dairy and poultry enterprises (An application of linear programming) | |
| 260 |
_aAmes _c1956 |
||
| 300 | _a712-730 p. | ||
| 440 | _aIowa Agricultural Experiment Station. Research Bulletin No. 437 | ||
| 650 | _aLivestock, Dairy, Poultry | ||
| 942 |
_2udc _cB |
||
| 901 | _a49859 | ||
| 999 |
_c55751 _d55751 |
||