00493nam a2200145Ia 4500008004100000082001700041100002100058245008400079250000700163260006600170300000900236650004100245650003400286653002700320170901s1970    xx            000 0 und d  a630.24bH83O  aHorwitz, William 0aOfficial Methods of Analysis of the Association of Official Analytical Chemists  a11  aWashingtonbAssociation of Official Analytical Chemistsc1970  a1015  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgricultural chemistry