| 000 | 00394 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aBeer, C.E., Wiersma, Dan | |
| 245 | 1 | _aIrrigated corn yields in the North central region of the United States | |
| 260 |
_aAmes _c1970 |
||
| 300 | _a1-42 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aYields, Irrigated Iowa Agriculture and Home Economics Experiment Station. Special Report No. 65 | ||
| 901 | _aS51701 | ||
| 999 |
_c109359 _d109359 |
||