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00673nam a2200193 a 4500 |
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000197524 |
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20111103143359.0 |
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110324s1997 sq 000 eng d |
| 020 |
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|a 2831703883
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| 040 |
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|a Sistema de Bibliotecas de la Universidad Nacional de Costa Rica
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| 040 |
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|a SIDUNA
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| 082 |
0 |
4 |
|a 333.784
|b W927g
|2 21
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| 110 |
1 |
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|a World Commission on Protected Areas (WCPA)
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| 245 |
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|a Guidelines for cave and karst protection. /
|c World Commission on Protected Areas (WCPA), Sintetizado y editado por John Watson [et.al].
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| 260 |
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|a Suiza :
|b IUCN,
|c 1997.
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| 300 |
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|a 53 p. :
|b il. ;
|c 24 cm.
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| 650 |
0 |
4 |
|a AREAS DE PROTECCION
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| 650 |
0 |
4 |
|a CUEVAS
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| 700 |
1 |
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|a Watson, John
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