00424nam a2200133Ia 4500008004100000082001900041245008700060250000600147260005800153650002700211650001600238650001500254700002100269220204s9999    xx            000 0 und d  a026.32916bHOR 0aOfficial methods of analysis of the association of official agricultural chemists.  a5  aWashingtonbAssociation of Agricultural chemistc1955  aAgricultural chemistry  aFertilizers  aPesticides  aHORWITZ, William