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| LEADER |
00807nam a2200325 i 4500 |
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|a Universidad Nacional Agraria
|b spa
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| 907 |
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|a P36
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| 911 |
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|a M
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| 978 |
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|a ARR
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| 979 |
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|a 10-11-2004
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| 991 |
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|a TEXTO
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| 991 |
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|a ALBA
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| 991 |
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|a NOV-04
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| 035 |
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|a 020164
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| 041 |
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|a eng
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| 092 |
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|a P36 H959
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| 100 |
1 |
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|a Hurni, H.
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| 245 |
1 |
0 |
|a Guidelines for development agents on soil conservation in Ethiopia
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| 260 |
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|a Swizertland, (Sweden) :
|b ,
|c 1986
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| 264 |
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|a Swizertland, (Sweden) :
|b ,
|c 1986
|
| 300 |
|
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|a 100 p
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| 500 |
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|a Ilus.
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| 650 |
|
7 |
|a DEGRADACION
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| 650 |
|
7 |
|a ESTRUCTURA DEL SUELO
|
| 650 |
|
7 |
|a CONSERVACION DE SUELOS
|
| 650 |
|
7 |
|a MEDIO AMBIENTE
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| 650 |
|
7 |
|a LEGISLACION
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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 L2924/04
|o P36 H959
|