Blakey, Joseph.
University Mathematics - 2 ed. - London English Language Book Society 1949 - P.581
Conic Section Expansion Spherical Co-Ordinate
510.024 B60U
University Mathematics - 2 ed. - London English Language Book Society 1949 - P.581
Conic Section Expansion Spherical Co-Ordinate
510.024 B60U