000 00298nam a22001457a 4500
999 _c45003
_d45003
003 OSt
020 _a9789339220907
082 _a535 GHA-O
100 _aGhatak, A Joy
245 _aOptics
250 _a6th
260 _aNew Delhi
_bTata Mcgraw Hill
_c2017
901 _a2174DON
942 _2ddc
_cBK