Cita APA (7th ed.)

Valtin, J., & Krebs, R. J. H. (1941). Out of the night. New York: Alliance Book Corporation.

Cita Chicago (17th ed.)

Valtin, Jan, i Richard Julius Hermann Krebs. Out of the Night. New York: Alliance Book Corporation, 1941.

Cita MLA (8th ed.)

Valtin, Jan, i Richard Julius Hermann Krebs. Out of the Night. New York: Alliance Book Corporation, 1941.