00262nam a2200109Ia 4500008004100000082001400041100002200055245001400077250000800091260004500099300000800144190709s9999    xx            000 0 und d  a540 Si16C  aSienko, Michell J 0aChemistry  a2nd  aNey YorkbMcGraw-Hill Book Co. Incc1961  a623