00398nam a2200145Ia 4500008004100000082001600041100001800057245003300075250000600108260004500114300000800159650004100167650003400208653001000242170901s1957    xx            000 0 und d  a631.4bL42I  aLeeper, G. W. 0aIntroduction to Soil Science  a3  aLondonbCambridge University Pressc1957  a222  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoils