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00968nam a22003131a 4500 |
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UNA01000172675 |
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20241029102420.0 |
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080728s1997 ca 00010 spa d |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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|a In
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|a 038632
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|a R031972
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1 |
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|a León Fernández, Maribel
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| 110 |
1 |
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|a Commission for Enivironmental Cooperation (CEC)
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| 245 |
1 |
0 |
|a Ecological Regions of North America. Toward a Common Perspective.
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|a Quebec CA :
|b CEC,
|c 1997.
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|a 71 p.
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|a Incluye afiches y anexos
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4 |
|a AMÉRICA DEL NORTE
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4 |
|a ESTADOS UNIDOS DE AMÉRICA
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4 |
|a MÉXICO
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0 |
4 |
|a ECOLOGÍA
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| 650 |
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4 |
|a RECURSOS NATURALES
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| 650 |
0 |
4 |
|a CONSERVACIÓN DE LA NATURALEZA
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| 773 |
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|t Cuadernillo
|g n. 2 s.f. p. 1-56
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| 852 |
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|a CIDCSO
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| 900 |
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|a JPS-20060515
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| 901 |
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|a EGC-20060330
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|a Realidad Nacional y su Contexto
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