APA (7th ed.) Citation

Kaufmann, W. J. (1993). Discovering the universe (3rd edition.). W. H. Freeman and Company.

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

Kaufmann, William J. Discovering the Universe. 3rd edition. W. H. Freeman and Company, 1993.

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