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Lua i Stíl Chicago (17ú heag.)United Nations Environment Programme. Industry & Environment Office. Environmental Aspects of Alumina Production: An Overview. [Paris?]: Industry & Environment Office, UNEP, 1985.
Lua MLA (9ú heag.)United Nations Environment Programme. Industry & Environment Office. Environmental Aspects of Alumina Production: An Overview. Industry & Environment Office, UNEP, 1985.
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