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其他書名
Natural Resource Condition Assessment
出版U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2012
URLhttp://books.google.com.hk/books?id=3MazzgEACAAJ&hl=&source=gbs_api
註釋This report synthesizes and reports on current conditions of key park resources using existing information, evaluates critical data and knowledge gaps, and highlights selected existing stressors and emerging threats to resources or processes.