Impacto ambiental de la explotación de oro artesanal, Península de Osa, Puntarenas Costa Rica /
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| Format: | Thesis Book |
| Language: | Spanish |
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San José, C.R.,
1992.
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| Physical Description: | x, [176] hojas : ilustraciones (algunas a color, plegables) ; 1992. |
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