|
|
|
|
| LEADER |
00966nam a22003131a 4500 |
| 001 |
UNA01000172675 |
| 005 |
20241029102420.0 |
| 008 |
080728s1997 ca 00010 spa d |
| 040 |
|
|
|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
|
| 041 |
|
|
|a In
|
| 082 |
|
|
|a 038632
|
| 090 |
|
|
|a R031972
|
| 100 |
1 |
|
|a León Fernández, Maribel
|
| 110 |
1 |
|
|a Commission for Enivironmental Cooperation (CEC)
|
| 245 |
1 |
0 |
|a Ecological Regions of North America. Toward a Common Perspective.
|
| 260 |
|
|
|a Quebec CA :
|b CEC,
|c 1997.
|
| 300 |
|
|
|a 71 p.
|
| 500 |
|
|
|a Incluye afiches y anexos
|
| 651 |
|
4 |
|a AMÉRICA DEL NORTE
|
| 651 |
|
4 |
|a ESTADOS UNIDOS DE AMÉRICA
|
| 651 |
|
4 |
|a MÉXICO
|
| 650 |
0 |
4 |
|a ECOLOGÍA
|
| 650 |
0 |
4 |
|a RECURSOS NATURALES
|
| 650 |
0 |
4 |
|a CONSERVACIÓN DE LA NATURALEZA
|
| 773 |
|
|
|t Cuadernillo
|g n. 2 s.f. p. 1-56
|
| 852 |
|
|
|a CIDCSO
|
| 900 |
|
|
|a JPS-20060515
|
| 901 |
|
|
|a EGC-20060330
|
| 902 |
|
|
|a Realidad Nacional y su Contexto
|