Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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