000			00307nam a2200133Ia 4500
008			190216s9999||||xx |||||||||||||| ||und||
100			_aSubrahmanyanan. N And Brijlal
245		0	_aOptics
250			_a1st Ed.
260			_bSulthan Chand&Sons _c1997
300			_a717
650			_aPhysics
942			_cBK
999			_c33339 _d33339