00293nam a2200109Ia 4500008004100000082001600041100003100057245003500088250000900123260004300132300000800175240913s9999||||xx |||||||||||||| ||und||  a541.3 PUR/E  aPuri , sharma and Pathania 0aElements of Physical Chemistry  aNULL  bSultan Chand and SonsaNew Delhic2006  a808