TY  - BOOK
AU  - Askwith,E.H., x
AU  - x
TI  - The analytical geometry of the conic sections: x
SN  - x
U1  - 516/ASA 
PY  - 1961///
CY  - Lond
PB  - Adam & Charles
KW  - Geometr, Analytic
N1  - x
ER  -