APA (7th ed.) Citation

Lewis, S. (1961). Lewis at zenith: A three-novel omnibus. Harcourt, Brace & World.

Chicago Style (17th ed.) Citation

Lewis, Sinclair. Lewis at Zenith: A Three-novel Omnibus. New York: Harcourt, Brace & World, 1961.

MLA (8th ed.) Citation

Lewis, Sinclair. Lewis at Zenith: A Three-novel Omnibus. Harcourt, Brace & World, 1961.

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