000 00349nam a22001457a 4500
008 240716b |||||||| |||| 00| 0 eng d
020 _a9788125930969
050 _aQC 20
_b.G87
100 _aGUMPTA, B.D
245 _aMathematical Physics
250 _a4th
260 _aIndian
_bVikas Publishing House
_c2016
300 _axvi, 15-150
942 _cBK
999 _c1373
_d1373