000 00290nam a2200109Ia 4500
008 210324s1968 xx 000 0 und d
041 _aeng
082 _a535
100 _aMathur, B. K.
_91575837
245 _aGeometrical and Physical Optics
260 _aKanpur
_bGopal Printing Press
_c1968
999 _c1024402
_d1024402