United States Naval Observatory. Nautical Almanac Office. (1917). Supplement to American ephemeris, 1917: Tables giving times of rising and setting of Sun and Moon, 1917 and 1918. GPO.
Chicago Style (17th ed.) CitationUnited States Naval Observatory. Nautical Almanac Office. Supplement to American Ephemeris, 1917: Tables Giving Times of Rising and Setting of Sun and Moon, 1917 and 1918. [Washington]: GPO, 1917.
MLA (9th ed.) CitationUnited States Naval Observatory. Nautical Almanac Office. Supplement to American Ephemeris, 1917: Tables Giving Times of Rising and Setting of Sun and Moon, 1917 and 1918. GPO, 1917.
Warning: These citations may not always be 100% accurate.