User:Perlygatekeeper/Books/Spherical Earth

Almost but not quite.

 * Earth radius
 * Figure of the Earth
 * Geoid
 * World Geodetic System
 * Oblate spheroid
 * Equatorial bulge
 * Flattening
 * Spherical Earth
 * Spherical harmonics
 * Geodesy
 * Reference ellipsoid
 * Global Positioning System
 * National Geospatial-Intelligence Agency
 * Earth