Cita APA (7th ed.)

Zeilik, M. (1998). Astronomy: The evolving universe (8th ed.). John Wiley.

Cita Chicago (17th ed.)

Zeilik, Michael. Astronomy: The Evolving Universe. 8th ed. New York: John Wiley, 1998.

Cita MLA (9th ed.)

Zeilik, Michael. Astronomy: The Evolving Universe. 8th ed. John Wiley, 1998.