Cita APA (7a ed.)

Zeilik, M. (1985). Astronomy the evolving universe. Harper and Row.

Cita Chicago Style (17a ed.)

Zeilik, Michael. Astronomy the Evolving Universe. New York: Harper and Row, 1985.

Cita MLA (9a ed.)

Zeilik, Michael. Astronomy the Evolving Universe. Harper and Row, 1985.