000 00255 a2200109 4500
020 _a9789352837229
100 _aDASS, H.K./VERMA, RAMA
245 _aMATHEMATICAL PHYSICS
250 _a8
260 _bSCHAND AND COMPANY LTD., NEW DELHI
_c2022
942 _cBK
999 _c89182
_d89182