Newcomb, S. A compendium of spherical astronomy with its applications to the determination and reduction of positions of the fixed stars. Dover Publications.
Lua i Stíl Chicago (17ú heag.)Newcomb, Simon. A Compendium of Spherical Astronomy with Its Applications to the Determination and Reduction of Positions of the Fixed Stars. New York: Dover Publications.
Lua MLA (9ú heag.)Newcomb, Simon. A Compendium of Spherical Astronomy with Its Applications to the Determination and Reduction of Positions of the Fixed Stars. Dover Publications.
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