The Astronomical Almanac for the year 2021, and its companion The Astronomical Almanac online., prepared jointly by the Nautical Almanac Office United States Naval Observatory and Her Majesty's Nautical Almanac Office United Kingdom Hydrographic Office
Label
The Astronomical Almanac for the year 2021, and its companion The Astronomical Almanac online., prepared jointly by the Nautical Almanac Office United States Naval Observatory and Her Majesty's Nautical Almanac Office United Kingdom Hydrographic Office
Isbn
9780707746159
Physical Description
unumbered pages, illustrations, maps, 26 cm
System control number
(OCoLC)1184463123
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