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1programme and meeting document bibliotecaUNESCO
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2Texto bibliotecaUNAM
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3Libro bibliotecaINFOR CL
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4Ecological guidelines for balanced land use, conservation and development in high mountains Ecological guidelines for balanced land use, conservation and development in high mountainsby Dasmann, Raymond F. autor/a, Poore, Duncan, International Union for Conservation of Nature and Natural Resources
Published 1979Texto bibliotecaECOSUR