000 00420nam a2200169Ia 4500
008 180424s9999 xx 000 0 und d
084 _a535 A2:1
100 _a"Acharya, D P"
245 0 _aGeometrical Optics for Advanced Students
250 _a\\197000ENGGPCX
260 _aOxford and IBH
260 _b1970
260 _cNew Delhi
300 _a275 p
500 _aincludes index and biblioraphy
942 _cBK
999 _c19548
_d19548