000 00309nam a2200145Ia 4500
008 190201s9999 xx 000 0 und d
082 _a535
082 _bS14T
100 _aSubrahmanyam S
245 2 _aA Text Book Of Optics
260 _aNew Delhi
260 _bS Chand
260 _c1990
300 _a612
999 _c29457
_d29457