APA (7th ed.) Citation

Great Britain. . Nautical Almanac Office, Science and Engineering Research Council (Great Britain), Science Research Council (Great Britain), & United States Naval Observatory. . Nautical Almanac Office. (1980). The Astronomical almanac (1st. issue: 1981-.). H.M.S.O.,.

Chicago Style (17th ed.) Citation

Great Britain. . Nautical Almanac Office, Science and Engineering Research Council (Great Britain), Science Research Council (Great Britain), and United States Naval Observatory. . Nautical Almanac Office. The Astronomical Almanac. 1st. issue: 1981-. Washington : U.S. G.P.O. ; London :: H.M.S.O.,, 1980.

MLA (9th ed.) Citation

Great Britain. . Nautical Almanac Office, et al. The Astronomical Almanac. 1st. issue: 1981-. H.M.S.O.,, 1980.