APA (7th ed.) Citation

Kaufmann, W. J. (1993). Discovering the universe (3rd ed.). W.H. Freeman.

Chicago Style (17th ed.) Citation

Kaufmann, William J. Discovering the Universe. 3rd ed. New York: W.H. Freeman, 1993.

MLA (9th ed.) Citation

Kaufmann, William J. Discovering the Universe. 3rd ed. W.H. Freeman, 1993.

Warning: These citations may not always be 100% accurate.