00457nam a2200157Ia 4500008004100000082001600041100002300057245005100080250000600131260004600137300000800183650004100191650003400232653001000266700002300276170901s1956    xx            000 0 und d  a631.4bW84F  aWorthen, Edmund L. 0aFarm SoilsbTheir fertilization and Management  a5  aNew YorkbJohn Wiley and Sons, Inc.c1956  a439  aAgriculture and related technologies  aTechnology (Applied sciences)  aSoils  aAldrich, Samuel R.