000 00346nam a2200133Ia 4500
008 240913s9999||||xx |||||||||||||| ||und||
082 _a535 KHU/T
100 _aBy A K Khurana
245 0 _aTheory and practice of optics and refraction
250 _aNULL
260 _bBI Churchill living stone
_aNew Delhi
_c2001
300 _a347p
942 _cBKS
999 _c6908
_d6908