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| 090 | _aFolleto 11358 | ||
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_aStoop, W. A. _9109902 |
| 245 | _aIssues in implementing research with a farming systems pespective in NARS | ||
| 260 |
_aThe Hague : _bInternational Service for National Agricultural Research, _c1987 |
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| 300 | _a29 p. | ||
| 490 |
_aWorking paper _v; 6 |
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| 590 |
_aBATCH-UPD _b10 _c20130110 _lUCH01 _h0517 |
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| 590 |
_aBATCH-UPD _b10 _c20130410 _lUCH01 _h0156 |
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_aCONVERSION _b10 _c20130109 _lUCH01 _h1331 |
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| 650 | 1 | 4 |
_aAgricultura _xInvestigación. _91577 |
| 830 | 0 |
_aWorking paper _v; 6 _9122628 |
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| 901 | _aBK | ||
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