000			00327nam a2200133Ia 4500
008			240913s9999||||xx |||||||||||||| ||und||
082			_a535 SIN/O
100			_aS.P.Singh and J.P.Agarwal
245		0	_aOptics and atomic physics
250			_aNULL
260			_bPragati Prakashan _aMeerut _c1970
300			_a746p
942			_cBKS
999			_c6896 _d6896