Cita APA (7th ed.)

Steinbeck, J. (1995). The moon is down. Penguin Books.

Cita Chicago (17th ed.)

Steinbeck, John. The Moon Is Down. Nueva York: Penguin Books, 1995.

Cita MLA (9th ed.)

Steinbeck, John. The Moon Is Down. Penguin Books, 1995.