The human environment: a selected bibliography on its ecology, resources, deterioration and conservation
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Format: | Texto biblioteca |
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1973
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Subjects: | NATURE CONSERVATION, POLLUTION, NATURAL RESOURCES, ECOLOGY, ENVIRONMENT, DOCUMENTATION, CONSERVATION DE LA NATURE, RESSOURCE NATURELLE, ECOLOGIE, ENVIRONNEMENT, CONSERVACION DE LA NATURALEZA, POLUCION, RECURSOS NATURALES, ECOLOGIA, MEDIO AMBIENTE, DOCUMENTACION, |
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