00439nam a2200145Ia 4500008004100000082001600041100002300057245005100080260004600131300000800177650004100185650003400226653001000260700002300270170901s1956    xx            000 0 und d  a631.4bW84F  aWorthen, Edmund L. 0aFarm SoilsbTheir fertilization and Management  aNew YorkbJohn Wiley and Sons, Inc.c1956  a439  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoils  aAldrich, Samuel R.