000			00398nam a2200145Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a535.2 _bGUP-E
100			_aR C, Gupta
245		0	_aElements of Opitics
260			_bS Chand & Company _aDelhi _c1960
300			_a408p.
630			_xGeneral Stack
650			_aLIGHT AND INFRARED AND ULTRAVIOLET PHENOMENA _vOPTICS _xPhysics
942			_cBOOK
999			_c24572 _d24572