000 00252nam a22001217a 4500
999 _c35737
_d35737
020 _a9789352533572
082 _a510/DAS
100 _aDass H.K.
245 _aMathematical Physics
260 _aDelhi
_bS.Chand Co
_c2019
300 _a1416
942 _cBK