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| 001 | 00699179 | ||
| 003 | PWmBRO | ||
| 005 | 20240602101148.0 | ||
| 008 | 850530s1985 dcua b i00010 eng | ||
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| 039 | 0 |
_a2 _b3 _c3 _d3 _e3 |
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| 043 | _aw------ | ||
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_aS494.5.S95 _bS56 1985 |
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| 090 | 0 | _b630.72/S592f | |
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_aSimmonds, Norman W., _d1914- |
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_aFarming systems research : _ba review / _cNorman W. Simmonds. |
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_aWashington, D.C. : _bWorld Bank, _cc1985. |
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| 300 |
_axii, 97 p. : _bill. |
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_aWorld Bank technical paper ; _vno. 43 |
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| 650 | 0 |
_aAgricultural systems _xResearch. |
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| 650 | 0 |
_aAgriculture _xResearch _xOn-farm. |
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| 650 | 0 |
_aAgricultural systems _zTropics. |
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