TY  - BOOK
AU  - Benny, L.B.
TI  - Plane geometry;an account of the more elementry properties of the conic sections,treated by the methods of co-ordinate geometry,& of modern projectives geometry,with applications to practical drawing
U1  - 516 
PY  - 1922///
CY  - London
PB  - Blackie and son
KW  - Plane
KW  - Geometry
ER  -