00374nam a2200157Ia 4500008004100000020001800041041000800059082001500067100001800082245004200100260002900142300000900171650001400180942000700194999001500201180314s9999    xx            000 0 und d  a9788122434361  aeng  a547.59 PAR  aParikh,Arun.R 4aThe Essence of Heterocyclic Chemistry  aNew AgebNew Delhic2013  a764p  achemistry  cBK  c4313d4313