作者:William Liefert;Olga Liefert;Ralph Seeley;等
发布日期:2004
关键词:Russia;Ukraine;...
发布机构:United States Department of Agriculture
2 Food Security Assessment, GFA-15 [科技报告]
作者:Stacey Rosen , Shahla Shapouri , Birgit Meade, Michael Trueblood , William Liefert, Constanza Valdes
发布日期:2004
关键词:Food security;hunger;...
发布机构:United States Department of Agriculture