000			00311 a2200133 4500
008			211110b ||||| |||| 00| 0 eng d
020			_a9788187134704
084			_2cc _aC51
100			_aGupta, A B
245			_aModern Optics
250			_a5
260			_bBooks and Allied (P) Ltd _c2019
942			_2CC _cGEN
999			_c195081 _d195081