The Nautical almanac and astronomical ephemeris for the year.
APA Citation
Great Britain. Admiralty., Great Britain. Commissioners of Longitude., Great Britain. Nautical Almanac Office. The Nautical almanac and astronomical ephemeris for the year. London [etc.]: H. M. Stationery Off. [etc.].
MLA Citation
Great Britain. Admiralty, Great Britain. Commissioners of Longitude, and Great Britain. Nautical Almanac Office. The Nautical Almanac And Astronomical Ephemeris for the Year. London [etc.]: H. M. Stationery Off. [etc.],
Warning: These citations may not always be complete (especially for serials).