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| 008 | 170101s2017 xx 000 0 und d | ||
| 082 | _a338.1 H46R | ||
| 100 | _aHeady. | ||
| 245 | 0 | _aResourse Demand & Structure of agriculture. | |
| 260 |
_aIowa _bIowa State Uni. |
||
| 650 | _aRESOURSE AGRICULTURE. | ||
| 653 | _aRESOURSE AGRICULTURE. | ||
| 942 |
_2ddc _cB |
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_c17750 _d17750 |
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