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1 Natural Resources: Woody Biomass Users' Experiences Offer Insights for Government Efforts Aimed at Promoting Its Use [科技报告]

作者:United States. Government Accountability Office.

发布日期:2006

关键词:Government accountability -- United States.;natural resources and environment;...

发布机构:United States. Government Accountability Office.

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2 Natural Resources: Federal Agencies Are Engaged in Various Efforts to Promote the Utilization of Woody Biomass, but Significant Obstacles to Its Use Remain [科技报告]

作者:United States. Government Accountability Office.

发布日期:2005

关键词:Government accountability -- United States.;natural resources and environment;...

发布机构:United States. Government Accountability Office.

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3 Changes in the Arctic: Background and Issues for Congress [科技报告]

作者:O', Rourke, Ronald

发布日期:2011

关键词:Environmental protection;animals;...

发布机构:Library of Congress. Congressional Research Service.

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