| 000 | 00513 am a2200133 a 4500 | ||
|---|---|---|---|
| 080 | _a631.816.1:633.15:330.18 | ||
| 100 | 1 | _aHeady, Earl O., Pesek, John T., Rao, V.Y. | |
| 245 | 1 | _aFertilizer production functions from experimental data with associated supply and demand relationships | |
| 260 |
_aIowa _c1966 |
||
| 300 | _a655-678 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aFertilizer, Production, Suuply, Demand Iowa Agricultural And Home Economics Experiment Station. Research Bulletin No. 543 | ||
| 901 | _aS13441 | ||
| 999 |
_c101010 _d101010 |
||