Cita APA (7a ed.)

Lucas, M. S., & Falls, C. B. (1943). Vast horizons. The Viking Press.

Cita Chicago Style (17a ed.)

Lucas, Mary Seymour, y C. B. Falls. Vast Horizons. New York: The Viking Press, 1943.

Cita MLA (8a ed.)

Lucas, Mary Seymour, y C. B. Falls. Vast Horizons. The Viking Press, 1943.