000 00310 a2200121 4500
020 _a9788121926119
084 _2Colon Classification
_aC51
100 _aSUBRAHMANYAM, N & BRIJ LAL
245 _aTest book of Optics
260 _bS Chand & Company Pvt Ltd
_c2021
_aNew Delhi
300 _a729p.
942 _cGEN
999 _c625278
_d625278