APA (7th ed.) Citation

United States Naval Observatory. Nautical Almanac Office. (1857). American ephemeris and nautical almanac for year 1857. [publisher not identified].

Chicago Style (17th ed.) Citation

United States Naval Observatory. Nautical Almanac Office. American Ephemeris and Nautical Almanac for Year 1857. [Washington]: [publisher not identified], 1857.

MLA (9th ed.) Citation

United States Naval Observatory. Nautical Almanac Office. American Ephemeris and Nautical Almanac for Year 1857. [publisher not identified], 1857.

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