?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Fischer%2C+G.&rft.aulast=Fischer&rft.aufirst=G.&rft.date=1984&rft.title=Global+Food+Perspective%3A+Assessing+Agronomic+Potential+and+Exploring+Economic+Policies&rft.genre=proceeding