000 00312nam a22001457a 4500
003 AUM
020 _a9788121914765
082 _a530.41/PUR/22
100 _aPuri, R.K & Babbar, V.K
245 _aSolid State Physics
250 _a2022
260 _aS.Chand & Company Limited
300 _a311
942 _2ddc
_cBK
999 _c8961
_d8961