作者:Robert Hoppe , Penni Korb , Erik O'Donoghue, David E. Banker
发布日期:2007
关键词:Contracting;family farms;...
发布机构:United States Department of Agriculture
作者:Robert Hoppe , Penni Korb , Erik O'Donoghue, David E. Banker
发布日期:2007
关键词:Contracting;family farms;...
发布机构:United States Department of Agriculture