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.
Chicago Style (17. basım) AtıfUnited States Naval Observatory. Nautical Almanac Office ve 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.
MLA (9th ed.) AtıfUnited States Naval Observatory. Nautical Almanac Office ve 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.