The Almagest, On the revolutions of the heavenly spheres, Epitome of Copernican astronomy: IV and V. The harmonies of the world - Ptolemy; Copernicus, Nicolaus; Kepler, Johannes (Chicago Encyclopedia Britannica, Inc, 1952)
The Almagest By Ptolemy; On The Revoluations Of The Heavenly Spheres By Nicolaus Copernicus;Epitome Of Copernican Astronomy: Iv And V.The Harmonies Of The World: V By Johannes Kepler
Keywords: Astronomy 2.Mathematics