The Nautical Almanac For The Year 1981: For Training Purpose…
Author: Nautical Almanac Office, Usno (Author), Nautical Almanac Office, H. M. (Author). Number of Pages: 314. Publication Date: 2011-06-28. Publisher: Starpath Publications.
Author: Nautical Almanac Office, Usno (Author), Nautical Almanac Office, H. M. (Author). Number of Pages: 314. Publication Date: 2011-06-28. Publisher: Starpath Publications.