00287nam a2200109 a 450000500170000008200220001710000210003924500540006025000120011426000310012630000200015720251203091603.0  a543.0858,bD, sil  aSilverstein, RM.  aSpectrometric identification of organic compounds  a5th ed.  aNew YorkbJohn Wileyc1991  ax, 420p, 25 cm.