00303nam a2200109Ia 4500008004100000020001800041100004100059245004900100250001100149260002000160650001300180240827s9999    xx            000 0 und d  a9780039100247  a ES Gould, Hold Rinchart and Winston 0aMechanism and Structure in Organic Chemistry  aLatest  bNew York.c1969  aPharmacy