| 000 | 00387nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aBrowning, J.A. | ||
| 245 | _aDisease consequences of intensive and extensive culture of field crops | ||
| 260 | _aAmes | ||
| 260 | _c1969 | ||
| 300 | _a1-56 p. | ||
| 440 | _aIowa Agriculture and Home Econ | ||
| 901 | _pS17407 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c120034 _d120034 |
||