000 00350nam a22001457a 4500
020 _a8173812527
082 _a535
_bCHA
100 _aChakrabarti, P.K.
245 _aGeometrical and physical optics
260 _aCalcutta
_bNew central book agencey
_c1992
300 _a522p.
650 _ageometrical optics
650 _aphysical optics
942 _cBK
999 _c245627
_d245627