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| LEADER |
00773nam a2200265 i 4500 |
| 007 |
ta |
| 040 |
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|a Universidad Nacional Agraria
|b spa
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| 907 |
|
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|a F08
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| 911 |
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|a AS
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| 978 |
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|a FMR
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| 979 |
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|a 23-01-2001
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| 991 |
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|a PP
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| 991 |
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|a UNA-PUB
|
| 035 |
|
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|a 036412
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| 041 |
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|a spa
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| 092 |
|
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|a PP F08 M754
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| 100 |
1 |
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|a Monserrat, P.=700 1
|a Villar, L.
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| 245 |
1 |
0 |
|a Consecuencias ecologicas del abandono de tierras y de la despoblacion rural
|
| 773 |
0 |
# |
|k Investigacion Agraria (España)
|g Sistemas y Recursos Forestales
|z IáN 1131-7965
|z IáN 1131-7965
|g (no. 1) p. 135-141
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| 500 |
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|a ilus., 5 ref.
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| 650 |
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7 |
|a AGRICULTURA ALTERNATIVA
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| 650 |
|
7 |
|a EROSION
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| 650 |
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7 |
|a DESVIACION DEL USO DE LA TIERRA
|
| 650 |
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7 |
|a MIGRACION RURAL-URBANA
|
| 942 |
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|c BK
|2 agris
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