| 000 | 00461nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 080 | _a631.816.1:633.15:330.18 | ||
| 100 | _aHeady, E.O., Pesek, J.T., Rao, V.Y. | ||
| 245 | _aFertilizer production functions from experimental data with associated supply an | ||
| 260 | _aAmes | ||
| 260 | _c1965 | ||
| 300 | _a655-678 p. | ||
| 440 | _aIowa Agricultural and Home Eco | ||
| 901 | _pS13440 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c122618 _d122618 |
||