4Rosegrant M W,Sombilla M A,Gerpacio R V,et al.Global food markets and exports in twenty first century.Paper presented at the Illinos World Food and Sustainable Agriculture Program Conference[A].Meeting the Demand for Food in the 21st Century:Chal-lenges and Opportunities[C].1997-05-20.
2Rosegrant M W, Sombilla M A, Gerpacio R V, et al. Global food markets and exports in twenty first century. Paper presented at the Illinos World Food and Sustainadle Agriculture Program Conference [A].Metting the Demand for Food in the 21 [st]Century: Chal
