000 00322 a2200133 4500
020 _a9788120325975
084 _2Colon Classification
_aC95
100 _aARULDHAS, G
245 _aModern Physics
260 _bPHI Learning Private Limited
_c2021
_aNew Delhi
300 _a440p.
700 _aRAJAGOPAL, P
942 _cGEN
999 _c625426
_d625426