APA (7th ed.) Citation

Freedman, R. A., & Kaufmann, W. J. (2001). Universe: The solar system (1. print.). Freeman.

Chicago Style (17th ed.) Citation

Freedman, Roger A., and William J. Kaufmann. Universe: The Solar System. 1. print. New York: Freeman, 2001.

MLA (9th ed.) Citation

Freedman, Roger A., and William J. Kaufmann. Universe: The Solar System. 1. print. Freeman, 2001.