APA (7th ed.) Citation

Steinbeck, J. (1942). The moon is down: Play in two parts. The Viking press.

Chicago Style (17th ed.) Citation

Steinbeck, John. The Moon Is Down: Play in Two Parts. New York: The Viking press, 1942.

MLA (9th ed.) Citation

Steinbeck, John. The Moon Is Down: Play in Two Parts. The Viking press, 1942.