000 00306nam a2200133Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a535
082 _bSUB/A
100 _an
_bsubrahmanyam
245 2 _aa text book of optics
260 _anew delhi
260 _bs. chand and company ltd
260 _c1993
999 _c6590
_d6590