Cita APA (7a ed.)
Copernicus, N., Kepler, J., & Ptolemy. (1952). The almagest, by Ptolemy ; On the revolutions of the heavenly spheres, by Nicolaus Copernicus ; Epitome of copernican astronomy: IV and v. The harmonies of the world: v, by Johannes Kepler.
Cita estilo Chicago (17a ed.)
Copernicus, Nicolaus, Johannes Kepler, y Ptolemy. The Almagest, by Ptolemy ; On the Revolutions of the Heavenly Spheres, by Nicolaus Copernicus ; Epitome of Copernican Astronomy: IV and V. The Harmonies of the World: V, by Johannes Kepler. 1952.
Cita MLA (9a ed.)
Copernicus, Nicolaus, et al. The Almagest, by Ptolemy ; On the Revolutions of the Heavenly Spheres, by Nicolaus Copernicus ; Epitome of Copernican Astronomy: IV and V. The Harmonies of the World: V, by Johannes Kepler. 1952.
Precaución: Estas citas no son 100% exactas.