00353    a2200109   4500082001500000245003200015260007800047300001500125440002800140650005700168650001800225  a631.4bSOI  aThe soilbworking the soil   aRomebFood and Agriculture Organization of the United Nationsc1970g1970  a30p.c21cm  aBetter farming series 9  aSpecific techniques; apparatus, equipment, materials  aSoil sciences