United States Naval Observatory. Nautical Almanac Office & Great Britain. Nautical Almanac Office. (2002). The astronomical almanac for the year 2004 and its companion The Astronomical Almanac Online: Data for astronomy, space sciences, geodesy, surveying, navigation and other applications. U.S. G.P.O.
Citação norma ChicagoUnited States Naval Observatory. Nautical Almanac Office and Great Britain. Nautical Almanac Office. The Astronomical Almanac for the Year 2004 and Its Companion The Astronomical Almanac Online: Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications. Washington, D.C: U.S. G.P.O, 2002.
Citação norma MLAUnited States Naval Observatory. Nautical Almanac Office and Great Britain. Nautical Almanac Office. The Astronomical Almanac for the Year 2004 and Its Companion The Astronomical Almanac Online: Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications. U.S. G.P.O, 2002.