Explanatory Supplement to the Astronomical Ephemeris and the American Ephameris and Nautical Almanac
Explanatory Supplement to the Astronomical Ephemeris and the American Ephameris and Nautical Almanac
- London: Her Majesty's Stationery Office 1961
- 505p. : il; 25 cm.
Astrofísica y Astronomía Descriptiva
Astrofísica y Astronomía Descriptiva