00425nam a2200157Ia 4500008004100000082001400041100002000055245004800075250000600123260004000129300000800169650003400177650001800211653001400229700002400243170901s1978 xx 000 0 und d a540bB78G aBrady, James E. 0aGeneral ChemistrybPrinciples and Structure a2 aNew YorkbJohn Wiley and Sonsc1978 a223 aChemistry and allied sciences aPure Sciences aChemistry aHumiston, Gerard E.