00321nam a2200121Ia 4500008004100000100001600041245005900057260002800116300000900144650002400153942000700177999001500184190216s9999||||xx |||||||||||||| ||und||  aAcheson R M 0aIntroduction To The Chemisty Of Heterocyclic Compundas  bWiley Eastern Ltdc1976  a300p  aChemistry-Chemistry  cBK  c2336d2336