000 00266nam a2200121Ia 4500
008 211209s1977 xx 000 0 und d
041 _aeng
082 _a535 MAT
100 _aMATHUR D S
245 _aOPTICS
260 _bRAMCHAND AND COMPANY
_c1977
300 _a444
999 _c17263
_d17263