000 00264nam a2200109Ia 4500
008 170912s9999 xx 000 0 und d
082 _a SOM/A
100 _aSOMMERVILLE D M Y
245 0 _aANALYTICAL CONICS
260 _bG BELL AND SONS AND LTD
_c1949
942 _cTB
999 _c26811
_d26811