Cita APA (7a ed.)

De Camp, L. S. (1974). Lest darkness fall. Ballantine Books.

Cita Chicago Style (17a ed.)

De Camp, Lyon Sprague. Lest Darkness Fall. New York: Ballantine Books, 1974.

Cita MLA (9a ed.)

De Camp, Lyon Sprague. Lest Darkness Fall. Ballantine Books, 1974.