00358nam a2200145Ia 4500008004000000041000800040082001100048100001900059245003800078260004600116650001500162650001500177650000700192650001300199210210b1913   xxu||||| |||| 00| 0 eng d  aeng  a515/67  aHATTON (J L S)  aPrinciples of projective geometry  aLondonbCambridge  University Pressc1913  aprojective  aPrinciples  aof  ageometry