APA (7th ed.) Zitazioa

Zeilik, M. (2002). Astronomy: The evolving universe (Ninth edition.). Cambridge University Press.

Chicago Style (17th ed.) Zitazioa

Zeilik, Michael. Astronomy: The Evolving Universe. Ninth edition. New York: Cambridge University Press, 2002.

MLA (9th ed.) Zitazioa

Zeilik, Michael. Astronomy: The Evolving Universe. Ninth edition. Cambridge University Press, 2002.