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作者:
发布日期:2012
关键词:invasive species;indicators;...
发布机构:European Environment Agency
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2 Program of Research on the Economics of Invasive Species Management Fiscal 2003-2011 Activities [科技报告]
作者:Craig Osteen andWilliam Hahn
发布日期:2011
关键词:Agricultural economics;invasive species;...
发布机构:United States Department of Agriculture
作者:Buck, Eugene H.;Upton, Harold F.;Stern, Charles V.;等
发布日期:2011
关键词:Animals;Fishes;...
发布机构:Library of Congress. Congressional Research Service.
作者:
发布日期:2010
关键词:biodiversity;invasive alien species;...
发布机构:European Environment Agency
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作者:
发布日期:2009
关键词:2008 Farm Act;nutrition assistance programs;...
发布机构:United States Department of Agriculture
6 Program of Research on the Economics of Invasive Species Management Fiscal 2003-2008 Activities [科技报告]
作者:Economic Research Service
发布日期:2009
关键词:agricultural economics;invasive species;...
发布机构:United States Department of Agriculture
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