00277nam a22000977a 4500003000600000005001700006008004100023040002500064245004600089260004400135DE-3120190521152301.0190521b ||||| |||| 00| 0 ger d cCopernicus Gymnasium aLehrbuch der Chemie cDr. Hermann Bergler aWürzburgbC.C. Buchners Verlag c1973