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The World Commission on Protected Areas, 2nd Southeast Asia Regional Forum, Pakse, Lao PDR, 6-11 December 1999
IUCN World Commission on Protected Areas. Southeast Asia Regional Forum
出版IUCN Lao PDR, 2000
URLhttp://books.google.com.hk/books?id=xnO5AAAAIAAJ&hl=&source=gbs_api
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