00282nam a2200109Ia 4500008004100000082001500041100003300056245002200089250000900111260004300120300000900163240913s9999||||xx |||||||||||||| ||und||  a540  CHO/Q  aBy K.K Chopra and GG Agarwal 0aQuantum mechanics  aNULL  bKrishna Prakashan MandiraMeerutc1997  a316p