00374nam a2200133Ia 4500008004100000082001700041100001600058245003400074260003200108300000800140650004100148650003400189653001700223170901s1999    xx            000 0 und d  a631.45bL14S  aLal, Rattan 0aSoil Quality and Soil Erosion  aBoca RatonbCRC Pressc1999  a329  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoil erosion