00311nam a2200121Ia 4500008004100000100002100041245004700062260003600109300000800145650001400153942000700167999001500174190216s9999||||xx |||||||||||||| ||und||  aBhattacharya. Pk 0aGroup Theory And Its Chemical Applications  bHimalaya Publishing Housec1997  a215  aChemistry  cBK  c3086d3086