APA (7th ed.) Citation

Royal Greenwich Observatory. Nautical Almanac Office. (1987). The astronomical almanac : data for astronomy, space sciences, geodesy, surveying, navigation and other applications / issued by Her Majesty's Nautical Office, Royal Greenwich Observatory..: Data for astronomy, space sciences, geodesy, surveying, navigation and other applications. HMSO ;.

Chicago Style (17th ed.) Citation

Royal Greenwich Observatory. Nautical Almanac Office. The Astronomical Almanac : Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications / Issued by Her Majesty's Nautical Office, Royal Greenwich Observatory..: Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications. London ; Washington: HMSO ;, 1987.

MLA (9th ed.) Citation

Royal Greenwich Observatory. Nautical Almanac Office. The Astronomical Almanac : Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications / Issued by Her Majesty's Nautical Office, Royal Greenwich Observatory..: Data for Astronomy, Space Sciences, Geodesy, Surveying, Navigation and Other Applications. HMSO ;, 1987.

Warning: These citations may not always be 100% accurate.