000 00294nam a2200121Ia 4500
008 190829s9999 xx 000 0 und d
082 _a535
_bSUB/A
100 _aSUBRAHMANYAM N
245 2 _aA TEXT BOOK OF OPTICS
250 _a25th Ed
260 _bS CHAND AND COMPANY PVT.LTD
_a
942 _cBK
999 _c17632
_d17632