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| LEADER |
01162nam 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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| 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 16-07-2004
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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 018935
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| 041 |
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|a spa
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| 092 |
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|a N P36 N583c
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| 110 |
1 |
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|a Ministerio de Desarrollo Agropecuario y Reforma Agraria; Dirección de Recursos Naturales y del Ambiente, Managua (Nicaragua)
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| 245 |
1 |
0 |
|a Conservación de nuestros recursos naturales
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| 260 |
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|a Managua (Nicaragua) :
|b ,
|c 1988
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| 264 |
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|a Managua (Nicaragua) :
|b ,
|c 1988
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| 300 |
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|a 33 p.
|
| 650 |
|
7 |
|a CONSERVACION DE SUELOS
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| 650 |
|
7 |
|a EROSION
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| 650 |
|
7 |
|a CONTAMINACION
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| 650 |
|
7 |
|a MEDIO AMBIENTE
|
| 650 |
|
7 |
|a CONSERVACION DE LOS RECURSOS
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| 650 |
|
7 |
|a METODOS DE OPTIMIZACION
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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 |
|
|
|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0527/04c01
|o N P36 N583c
|
| 952 |
|
|
|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0783/06c02
|o N P36 N583c
|
| 952 |
|
|
|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0784/06c03
|o N P36 N583c
|
| 952 |
|
|
|a 01
|b 01
|8 CG
|c CG
|y BK
|p D0785/06c04
|o N P36 N583c
|