000 00285nam a2200109Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
100 _aAcharya, D. P.
245 0 _aGeometrical Optics For Advanced Students
260 _bOxford & Ibh
_aCalcutta
_c1970
650 _aOptics
942 _cBK
999 _c11967
_d11967