00273nam a22001217a 4500020001800000082001900018100002500037245002700062250001200089260002700101300000900128650001400137  a9788131707937  a547.59b GIL/H  a Gilchrist, Thomas L  aHeterocyclic Chemistry  a3rd Ed.  aNoidab Pearson c2014  a414p  aChemistry