000 00291nam a2200109 4500
008 160616s 000 0
245 _aProjective differential geometry of curves and ruled surfaces
100 _aWilczynski, E.J
500 _aB6:7 K1
942 _cBK
_2BK3306
080 _a517.144 WIL
999 _c3306
_d3306