000 00255nam a2200109Ia 4500
008 211209s1910 xx 000 0 und d
041 _aeng
082 _a516.16 N10 SMI
100 _aSMITH C
245 _aCONIC SECTIONS CO-ORDINATE GEOMETRY
260 _c1910
999 _c1826
_d1826