TY  - BOOK
AU  - Bell, Robert J.T.
TI  - An elementry treatise on coordinate geometry of three dimensions
U1  - 516.16 
PY  - 1965///
CY  - London
PB  - Macmillan and Co Ltd.
KW  - Mathematics
KW  - Geometry
KW  -  Coordinate  system
KW  - Paraboloids
ER  -