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|a Universidad Nacional Agraria
|b spa
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|a P01
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|a M
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978 |
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|a EMF
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979 |
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|a 14-03-2006
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|a DOC
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991 |
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|a ECILMARZ
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|a 023491
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041 |
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|a eng
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|a P01 B789
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100 |
1 |
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|a Boyd Orr, L.J.
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|a Protect and produce: Soil conservation for development
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260 |
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|a Rome (Italy) :
|b ,
|c 1948?
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|a Rome (Italy) :
|b ,
|c 1948?
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300 |
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|a 40 p.
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500 |
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|a Ilus.
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650 |
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|a RECURSOS DE LA TIERRA
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650 |
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7 |
|a UTILIZACION DE LA TIERRA
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650 |
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7 |
|a ORDENACION DE TIERRAS
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650 |
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7 |
|a REVESTIMIENTO DE PROTECCION
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650 |
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|a AGRICULTURA
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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 D0955/05
|o P01 B789
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