00385nam a2200157Ia 4500008004100000020001500041082001400056100002300070245001400093250000600107260003900113300000900152650003400161650001800195653001400213170901s1993    xx            000 0 und d  a0669324620  a540bZ-8C  aZumdahl, Steven S. 0aChemistry  a3  aTorontobD. C. Heath And Co.c1993  a1123  aChemistry and allied sciences  aPure Sciences  aChemistry