Cita APA (7a ed.)

Kingsley, S., & Koestler, A. (1951). Darkness at noon. Random House.

Cita Chicago Style (17a ed.)

Kingsley, Sidney, y Arthur Koestler. Darkness at Noon. New York: Random House, 1951.

Cita MLA (9a ed.)

Kingsley, Sidney, y Arthur Koestler. Darkness at Noon. Random House, 1951.