Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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