AA national observatoryA national observatoryde Simon Newcomb · Publicada por primera vez en 1983MateriasAstronomical observatoriesEdiciones (1)A national observatory (1983)s.n. · inglésMás obras de Simon NewcombAAstronomy for everybodyAstronomy for everybody1942LLogarithmic and other mathematical tablesLogarithmic and other mathematical tables1882Algebra for Schools and Colleges1884