APA (7th ed.) Zitazioa
Tolomeo, C., Copérnico, N., Kepler, J., & Hutchins, R. M. The Almagest / On the Revolutions of the Heavenly Spheres / The Harmonies of the World. Encyclopaedia Britannica.
Chicago Style (17th ed.) Zitazioa
Tolomeo, Claudio, Nicolás Copérnico, Johannes Kepler, eta Robert Maynard Hutchins. The Almagest / On the Revolutions of the Heavenly Spheres / The Harmonies of the World. Chicago, EUA: Encyclopaedia Britannica.
MLA (9th ed.) Zitazioa
Tolomeo, Claudio, et al. The Almagest / On the Revolutions of the Heavenly Spheres / The Harmonies of the World. Encyclopaedia Britannica.
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