00553    a2200169   4500020001500000082001600015100002200031245004500053260007900098300001800177440003700195650004100232650002400273650003100297650003500328700002000363  a9251032041  a631.58bAND  aAnderson, Jock R.  aRisk analysis in dryland farming systems  aRomebFood and Agriculture Organization  of the United Nationsc1992g1992  ax,109p.c30cm  aFarm systems management series 2  aAgriculture and related technologies  aSpecific techniques  aCultivation and harvesting  aSpecial methods of cultivation  aDillon, John L.