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| LEADER |
01111nam a2200385 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 P36
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| 908 |
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|a P10
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| 909 |
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|a F08
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| 911 |
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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 14-12-1997
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| 980 |
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|a EMF
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| 981 |
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|a 09-11-2006
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| 991 |
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|a DOC
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| 991 |
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|a eccel
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| 035 |
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|a 004220
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| 041 |
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|a spa
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| 092 |
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|a N P36 N583i
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| 110 |
1 |
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|a Ministerio de Desarrollo Agropecuario y Reforma Agraria, Managua (Nicaragua)
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| 245 |
1 |
0 |
|a Introducción a las prácticas de conservación de suelo y agua
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| 260 |
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|a Managua (Nicaragua) :
|b ,
|c [199-?]
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| 264 |
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|a Managua (Nicaragua) :
|b ,
|c [199-?]
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| 300 |
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|a 24 p.
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| 500 |
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|a Ilus.
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| 650 |
|
7 |
|a CONSERVACION DE SUELOS
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| 650 |
|
7 |
|a CONSERVACION DE AGUAS
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| 650 |
|
7 |
|a CULTIVO EN CURVAS DE NIVEL
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| 650 |
|
7 |
|a NICARAGUA
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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 D1015/97c01
|o N P36 N583i
|
| 952 |
|
|
|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0777/06c02
|o N P36 N583i
|
| 952 |
|
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|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0778/06c03
|o N P36 N583i
|
| 952 |
|
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|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0779/06c04
|o N P36 N583i
|