00417nam a2200145Ia 4500008004100000082001400041100002000055245003000075260005000105300000800155650004100163650003400204653001600238700001700254170901s1952    xx            000 0 und d  a630bW52P  aWilliams, W. R. 0aPrinciples of Agriculture  aNew YorkbChemical Publishing Co., Inc.c1952  a156  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgriculture  aJacks, G. V.