Não informado. (1978). Industry and Environment. United Nations Environment Programme.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Industry and Environment. Paris: United Nations Environment Programme, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Industry and Environment. United Nations Environment Programme, 1978.
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