00365nam a2200133Ia 4500008004100000020001500041080001800056100001400074245006000088260003300148300001000181653001700191653002300208140220s9999    xx            000 0 und d  a8176631299  a631.4:62bMAL  aMal, B.C.  aIntroduction to Soil and Water Conservation Engineering  bKalyani Pub.aLudhianac2002  a428p.  aSoil Science  aWater Conservation