00353nam a2200097Ia 4500008004100000082001700041100002800058245010100086260006000187300000800247140113s9999    xx            000 0 und d  a543(63)   K0  a"Horwitz, William. Ed."  a"Official methods of analysis of the association of official agricultural chemists, 9th edition"  a1960bAssoc.Official Agreicultural ChemistrcWashington  a832