| 000 | 00403nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 080 | _a631.4:633:631.557(777) | ||
| 100 | _aFenton, T.E. and Others | ||
| 245 | _aProductivity levels of some Iowa soils | ||
| 260 | _aAmes | ||
| 260 | _c1971 | ||
| 300 | _a1-23 p. | ||
| 440 | _aIowa Agriculture and Home Econ | ||
| 901 | _pS19598 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c130767 _d130767 |
||