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| 005 | 20180713183752.0 | ||
| 008 | 140415s1990 mx 000 0 spa d | ||
| 041 | _aspa | ||
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_a630.018 _bAVA |
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| 250 | _a1a ed. | ||
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_aMEXICO : _bFAUANL, _c1990 |
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| 300 | _a276 | ||
| 650 | 1 | 4 |
_aAGRICULTURA _xINVESTIGACION AGRICOLA |
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_c3865 _d3865 |
||