00270nam a2200121Ia 4500008004100000082001100041082001000052100002000062245002200082260001300104260002200117260000900139230118s9999||||xx |||||||||||||| ||und||  a530.12  bTHA/Q  av.kbthankappan 0aquantum mechanics  anewdelhi  bwiley eastern ltd  c1985