Cita APA

Koestler, A. 1., & Koestler, A. 1. (1970). Darkness at noon (2. edition.). New York, New York: Bantam Books, Inc..

Citación estilo Chicago

Koestler, Arthur 1905-1983, y Arthur 1905-1983 Koestler. Darkness At Noon. 2. edition. New York, New York: Bantam Books, Inc., 1970.

Cita MLA

Koestler, Arthur 1905-1983, y Arthur 1905-1983 Koestler. Darkness At Noon. 2. edition. New York, New York: Bantam Books, Inc., 1970.