APA (7th ed.) Citation

Zeilik, M., & Gaustad , J. E. (1990). Astronomy: The cosmic perspective (2nd ed.). John Wiley.

Chicago Style (17th ed.) Citation

Zeilik, Michael, and John E. Gaustad. Astronomy: The Cosmic Perspective. 2nd ed. New York: John Wiley, 1990.

MLA (9th ed.) Citation

Zeilik, Michael, and John E. Gaustad. Astronomy: The Cosmic Perspective. 2nd ed. John Wiley, 1990.