00410naa a2200133 a 450000100080000000500110000800800410001910000160006024500810007626000090015765300190016665300090018577300820019410496062006-10-31       1973    bl ---       0--  u    #d1 aBELL, F. F.  aLand use for agricultural productionbagricultural land use and soil erosion  c1973  aErosao do solo  aSolo  tIn: Ecology and Agricultural production: proceedings of a Symposium, p.45-54.