State of the environment: an assessment at mid-decade
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| Main Author: | |
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| Format: | Texto biblioteca |
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| Published: |
Washington, DC (USA)
1984
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| Subjects: | ENVIRONMENTAL PROTECTION, POLLUTION CONTROL, ENVIRONMENTAL POLICIES, POLLUTANTS, PROTECTION DE L'ENVIRONNEMENT, LUTTE ANTIPOLLUTION, PROTECCION AMBIENTAL, CONTROL DE LA CONTAMINACION, POLITIQUE DE L'ENVIRONNEMENT, POLLUANT, POLITICA AMBIENTAL, CONTAMINANTES, |
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