000 00291nam a2200121Ia 4500
008 240913s9999||||xx |||||||||||||| ||und||
082 _a540 QUA
100 _aBy S L Gupta ch
245 0 _aQuantum mechanics
250 _aNULL
260 _bJaiprakashnath and Co.
_aMeerut
_c1972
942 _cBKS
999 _c5699
_d5699