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|a Universidad Nacional Agraria
|b spa
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|a A50
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| 911 |
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|a MS
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| 978 |
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|a RS
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|a 12-02-2002
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|a DOC
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|a ROSENE
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| 035 |
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|a 014689
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|a eng
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|a A50 B469
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| 100 |
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|a Bennell, P.
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| 245 |
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|a Agricultural researchers in Sub-Saharan Africa : a quantitative overview
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| 260 |
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|a La Haya (Holanda) :
|b ,
|c 1986
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| 264 |
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|a La Haya (Holanda) :
|b ,
|c 1986
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| 300 |
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|a 31 p.
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| 490 |
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|a Working paper (Holanda)
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| 500 |
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|a Ilus.
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| 650 |
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|a INVESTIGACION
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| 650 |
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|a TECNOLOGIA APROPIADA
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| 650 |
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|a DISTRIBUCION GEOGRAFICA
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| 650 |
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7 |
|a AFRICA
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| 942 |
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|c BK
|2 agris
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| 952 |
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|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0025/02
|o A50 B469
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