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Who is who at the Earth Summit, Rio de Janeiro 1992
Hans J. Keller
出版Visionlink Education Foundation, 1992
主題Nature / EcologyScience / Environmental ScienceTechnology & Engineering / Environmental / General
ISBN096284053X9780962840531
URLhttp://books.google.com.hk/books?id=-muuAAAAIAAJ&hl=&source=gbs_api