000 00281nam a22001217a 4500
003 OSt
008 240515b |||||||| |||| 00| 0 eng d
100 _aSANKAR, B N AND PILLAI, S O
245 _aENGINEERING PHYSICS- 1
260 _bNEW AGE
_c2020
300 _a187
942 _2ddc
_cBK
999 _c31346
_d31346