00403nam a2200133Ia 4500008004100000082001100041100002300052245003600075260004900111300001300160600004000173600003400213650002200247140224s9999    xx            000 0 und d  a547 L2  aBarrett, Edward J.  aEssentials of organic chemistry  aNew YorkbHolt, Reinhart and Winstoncc 1972  axv,421p.  a Edward J.Barrett and John C.Powers  aPowers, John C., joint author  aOrganic Chemistry