Supplement to the American Ephemeris, 1946, Tables of Sunrise, Sunset, and Twilight.

Bibliographic Details

Corporate Author:	United States Naval Observatory. Nautical Almanac Office
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1945.
Subjects:	Navies. Navigation. Ships. Astronomy.
Online Access:	Electronic resource (PDF)