000 00263nam a22001217a 4500
020 _a139789390113590
082 _a535
_bGHA/O
100 _aGhatak,Ajay
245 _aOptics
250 _a7th ed.
260 _aNew Delhi
_bMcGraw hill education
_c2022
942 _cBK
999 _c20077
_d20077