Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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