00294nam a2200121Ia 4500000002500000008004100025020001800066100001300084245004000097260001000137260001700147856000800164     nam a22     7a 4500240116s9999    xx            000 0 und d  a9789390620951  aA K GOEL 0aBASIC CONCEPTS OF ORGANIC CHEMISTRY  aPEARL  c1ST EDN 2022  3CHY