000 00312nam a2200121Ia 4500
008 220201s1956 xx 000 0 eng d
082 _a516.3
_bSMI
100 _aSmith Charles
245 0 _aConic sections by the method of coordinate geometry
260 _bMacmillian & Co.
_c1956
300 _a449
942 _2ddc
999 _c71901
_d71901