The almagest , by Ptolemy ; On the Revolutions of the heavenly spheres, by Copernicus ; Epitome of Copernican Astronomy: the harmonies of the world by Ke /
Ptolemy, Johannes Kepler and Nicolaus Copernicus; edited by Robert Maynard Hutchins.
- Chicago : Encyclopaedia Britannica, INC., 1952.
- Vols. : ills, ; 25 cm.
- Great Books Of The Western World-16(ptolemy copernicus kepler) .