APA (7th ed.) Citation

Steinbeck, J. (1942). The moon is down: A novel. The Viking Press.

Chicago Style (17th ed.) Citation

Steinbeck, John. The Moon Is Down: A Novel. New York: The Viking Press, 1942.

MLA (8th ed.) Citation

Steinbeck, John. The Moon Is Down: A Novel. The Viking Press, 1942.