APA (7th ed.) Citation

Lewis, R. S. (1983). The illustrated encyclopedia of the universe: Exploring and understanding the cosmos. Harmony Books.

Chicago Style (17th ed.) Citation

Lewis, Richard S. The Illustrated Encyclopedia of the Universe: Exploring and Understanding the Cosmos. New York: Harmony Books, 1983.

MLA (9th ed.) Citation

Lewis, Richard S. The Illustrated Encyclopedia of the Universe: Exploring and Understanding the Cosmos. Harmony Books, 1983.