00276nam a2200109 a 450000500170000008200240001710000220004124500470006325000120011026000270012230000170014920251203091601.0  a540.151222,bD, bha  aBhattacharya, PK.  aGroup theory and its chemical applications  a2nd ed.  aBombaybHimalayac1989  a210p, 22 cm.